diff --git a/backend/app/routers/purchase_request.py b/backend/app/routers/purchase_request.py
index 9bec7a8..9234f54 100644
--- a/backend/app/routers/purchase_request.py
+++ b/backend/app/routers/purchase_request.py
@@ -385,12 +385,35 @@ def save_materials_data(materials_data: List[Dict], file_path: str, request_no:
     """
     자재 데이터를 JSON으로 저장 (프론트엔드에서 동일한 엑셀 포맷으로 생성하기 위해)
     """
+    # 수량을 정수로 변환하여 저장
+    cleaned_materials = []
+    for material in materials_data:
+        cleaned_material = material.copy()
+        if 'quantity' in cleaned_material:
+            try:
+                cleaned_material['quantity'] = int(float(cleaned_material['quantity']))
+            except (ValueError, TypeError):
+                cleaned_material['quantity'] = 0
+        cleaned_materials.append(cleaned_material)
+    
+    # 그룹화된 자재도 수량 정수 변환
+    cleaned_grouped = []
+    if grouped_materials:
+        for group in grouped_materials:
+            cleaned_group = group.copy()
+            if 'quantity' in cleaned_group:
+                try:
+                    cleaned_group['quantity'] = int(float(cleaned_group['quantity']))
+                except (ValueError, TypeError):
+                    cleaned_group['quantity'] = 0
+            cleaned_grouped.append(cleaned_group)
+    
     data_to_save = {
         "request_no": request_no,
         "job_no": job_no,
         "created_at": datetime.now().isoformat(),
-        "materials": materials_data,
-        "grouped_materials": grouped_materials or []  # 그룹화된 자재 정보 저장
+        "materials": cleaned_materials,
+        "grouped_materials": cleaned_grouped or []
     }
     
     with open(file_path, 'w', encoding='utf-8') as f:
diff --git a/backend/exports/PR-20251014-001.json b/backend/exports/PR-20251014-001.json
index 5c08aef..f344915 100644
--- a/backend/exports/PR-20251014-001.json
+++ b/backend/exports/PR-20251014-001.json
@@ -1,30 +1,30 @@
 {
   "request_no": "PR-20251014-001",
-  "job_no": "TK-MP-DEV-001",
-  "created_at": "2025-10-14T04:35:25.977081",
+  "job_no": "TKG-25000P",
+  "created_at": "2025-10-14T05:52:12.372051",
   "materials": [
     {
-      "material_id": 7078,
+      "material_id": 1,
       "description": "HALF NIPPLE, SMLS, SCH 80S, ASTM A312 TP304 SW X NPT",
       "category": "FITTING",
       "size": "1/2\"",
       "material_grade": "ASTM A312 TP304",
-      "quantity": "3.000",
+      "quantity": 3,
       "unit": "EA",
       "user_requirement": ""
     },
     {
-      "material_id": 7080,
+      "material_id": 3,
       "description": "HALF NIPPLE, SMLS, SCH 80S, ASTM A312 TP304 SW X NPT",
       "category": "FITTING",
       "size": "1/2\"",
       "material_grade": "ASTM A312 TP304",
-      "quantity": "3.000",
+      "quantity": 3,
       "unit": "EA",
       "user_requirement": ""
     },
     {
-      "material_id": 7220,
+      "material_id": 143,
       "description": "HALF NIPPLE, SMLS, SCH 160, ASTM A106 B SW * NPT",
       "category": "FITTING",
       "size": "1\"",
@@ -34,37 +34,37 @@
       "user_requirement": ""
     },
     {
-      "material_id": 7369,
+      "material_id": 292,
       "description": "HALF NIPPLE, SMLS, SCH 160, ASTM A106 B SW X NPT",
       "category": "FITTING",
       "size": "1/2\"",
       "material_grade": "ASTM A106 B",
-      "quantity": "9.000",
+      "quantity": 9,
       "unit": "EA",
       "user_requirement": ""
     },
     {
-      "material_id": 7373,
+      "material_id": 296,
       "description": "HALF NIPPLE, SMLS, SCH 160, ASTM A106 B SW X NPT",
       "category": "FITTING",
       "size": "1/2\"",
       "material_grade": "ASTM A106 B",
-      "quantity": "9.000",
+      "quantity": 9,
       "unit": "EA",
       "user_requirement": ""
     },
     {
-      "material_id": 7376,
+      "material_id": 299,
       "description": "HALF NIPPLE, SMLS, SCH 160, ASTM A106 B SW X NPT",
       "category": "FITTING",
       "size": "1/2\"",
       "material_grade": "ASTM A106 B",
-      "quantity": "9.000",
+      "quantity": 9,
       "unit": "EA",
       "user_requirement": ""
     },
     {
-      "material_id": 7378,
+      "material_id": 301,
       "description": "NIPPLE, SMLS, SCH 160, ASTM A106 B",
       "category": "FITTING",
       "size": "1/2\"",
@@ -74,7 +74,7 @@
       "user_requirement": ""
     },
     {
-      "material_id": 7689,
+      "material_id": 612,
       "description": "90 LR ELL, SMLS, SCH 40S, ASTM A403 WP304",
       "category": "FITTING",
       "size": "10\"",
@@ -84,7 +84,7 @@
       "user_requirement": ""
     },
     {
-      "material_id": 7690,
+      "material_id": 613,
       "description": "90 LR ELL, SMLS, SCH 40, ASTM A234 WPB",
       "category": "FITTING",
       "size": "2\"",
@@ -94,7 +94,7 @@
       "user_requirement": ""
     },
     {
-      "material_id": 7715,
+      "material_id": 638,
       "description": "90 LR ELL, SMLS, SCH 40S, ASTM A403 WP304",
       "category": "FITTING",
       "size": "2\"",
@@ -104,7 +104,7 @@
       "user_requirement": ""
     },
     {
-      "material_id": 7721,
+      "material_id": 644,
       "description": "90 LR ELL, SMLS, SCH 40, ASTM A234 WPB",
       "category": "FITTING",
       "size": "3\"",
@@ -114,7 +114,7 @@
       "user_requirement": ""
     },
     {
-      "material_id": 7733,
+      "material_id": 656,
       "description": "90 LR ELL, SMLS, SCH 40S, ASTM A403 WP304",
       "category": "FITTING",
       "size": "3\"",
@@ -124,7 +124,7 @@
       "user_requirement": ""
     },
     {
-      "material_id": 7737,
+      "material_id": 660,
       "description": "90 LR ELL, SMLS, SCH 40, ASTM A234 WPB",
       "category": "FITTING",
       "size": "4\"",
@@ -134,7 +134,7 @@
       "user_requirement": ""
     },
     {
-      "material_id": 7744,
+      "material_id": 667,
       "description": "90 SR ELL, SMLS, SCH 40, ASTM A234 WPB",
       "category": "FITTING",
       "size": "4\"",
@@ -144,7 +144,7 @@
       "user_requirement": ""
     },
     {
-      "material_id": 7745,
+      "material_id": 668,
       "description": "90 LR ELL, SMLS, SCH 40, ASTM A234 WPB",
       "category": "FITTING",
       "size": "6\"",
@@ -154,7 +154,7 @@
       "user_requirement": ""
     },
     {
-      "material_id": 7752,
+      "material_id": 675,
       "description": "45 ELL, SMLS, SCH 40, ASTM A234 WPB",
       "category": "FITTING",
       "size": "6\"",
@@ -164,7 +164,7 @@
       "user_requirement": ""
     },
     {
-      "material_id": 7754,
+      "material_id": 677,
       "description": "TEE, SMLS, SCH 40, ASTM A234 WPB",
       "category": "FITTING",
       "size": "2\"",
@@ -174,7 +174,7 @@
       "user_requirement": ""
     },
     {
-      "material_id": 7758,
+      "material_id": 681,
       "description": "TEE, SMLS, SCH 40S, ASTM A403 WP304",
       "category": "FITTING",
       "size": "2\"",
@@ -184,7 +184,7 @@
       "user_requirement": ""
     },
     {
-      "material_id": 7759,
+      "material_id": 682,
       "description": "TEE, SMLS, SCH 40, ASTM A234 WPB",
       "category": "FITTING",
       "size": "3\"",
@@ -194,7 +194,7 @@
       "user_requirement": ""
     },
     {
-      "material_id": 7760,
+      "material_id": 683,
       "description": "TEE, SMLS, SCH 40S, ASTM A403 WP304",
       "category": "FITTING",
       "size": "3\"",
@@ -204,7 +204,7 @@
       "user_requirement": ""
     },
     {
-      "material_id": 7761,
+      "material_id": 684,
       "description": "TEE RED, SMLS, SCH 40 X SCH 80, ASTM A234 WPB",
       "category": "FITTING",
       "size": "2\" x 1 1/2\"",
@@ -214,7 +214,7 @@
       "user_requirement": ""
     },
     {
-      "material_id": 7764,
+      "material_id": 687,
       "description": "TEE RED, SMLS, SCH 40S X SCH 40S, ASTM A403 WP304",
       "category": "FITTING",
       "size": "2\" x 1 1/2\"",
@@ -224,7 +224,7 @@
       "user_requirement": ""
     },
     {
-      "material_id": 7766,
+      "material_id": 689,
       "description": "TEE RED, SMLS, SCH 40 X SCH 80, ASTM A234 WPB",
       "category": "FITTING",
       "size": "3\" x 1 1/2\"",
@@ -234,7 +234,7 @@
       "user_requirement": ""
     },
     {
-      "material_id": 7769,
+      "material_id": 692,
       "description": "TEE RED, SMLS, SCH 40 X SCH 80, ASTM A234 WPB",
       "category": "FITTING",
       "size": "4\" x 1 1/2\"",
@@ -244,7 +244,7 @@
       "user_requirement": ""
     },
     {
-      "material_id": 7771,
+      "material_id": 694,
       "description": "RED CONC, SMLS, SCH 80 X SCH 80, ASTM A234 WPB",
       "category": "FITTING",
       "size": "1 1/2\" x 1\"",
@@ -254,7 +254,7 @@
       "user_requirement": ""
     },
     {
-      "material_id": 7776,
+      "material_id": 699,
       "description": "RED CONC, SMLS, SCH 80 X SCH 80, ASTM A234 WPB",
       "category": "FITTING",
       "size": "1 1/2\" x 3/4\"",
@@ -264,7 +264,7 @@
       "user_requirement": ""
     },
     {
-      "material_id": 7778,
+      "material_id": 701,
       "description": "RED CONC, SMLS, SCH 80 X SCH 80, ASTM A234 WPB",
       "category": "FITTING",
       "size": "1\" x 3/4\"",
@@ -274,7 +274,7 @@
       "user_requirement": ""
     },
     {
-      "material_id": 7783,
+      "material_id": 706,
       "description": "RED CONC, SMLS, SCH 40S X SCH 40S, ASTM A403 WP304",
       "category": "FITTING",
       "size": "12\" x 10\"",
@@ -284,7 +284,7 @@
       "user_requirement": ""
     },
     {
-      "material_id": 7784,
+      "material_id": 707,
       "description": "RED CONC, SMLS, SCH 40 X SCH 80, ASTM A234 WPB",
       "category": "FITTING",
       "size": "2\" x 1 1/2\"",
@@ -294,7 +294,7 @@
       "user_requirement": ""
     },
     {
-      "material_id": 7790,
+      "material_id": 713,
       "description": "RED CONC, SMLS, SCH 40S X SCH 40S, ASTM A403 WP304",
       "category": "FITTING",
       "size": "2\" x 1 1/2\"",
@@ -304,7 +304,7 @@
       "user_requirement": ""
     },
     {
-      "material_id": 7791,
+      "material_id": 714,
       "description": "RED CONC, SMLS, SCH 40 X SCH 80, ASTM A234 WPB",
       "category": "FITTING",
       "size": "2\" x 1\"",
@@ -314,7 +314,7 @@
       "user_requirement": ""
     },
     {
-      "material_id": 7792,
+      "material_id": 715,
       "description": "RED CONC, SMLS, SCH 40 X SCH 80, ASTM A234 WPB",
       "category": "FITTING",
       "size": "3\" x 1 1/2\"",
@@ -324,7 +324,7 @@
       "user_requirement": ""
     },
     {
-      "material_id": 7794,
+      "material_id": 717,
       "description": "RED CONC, SMLS, SCH 40S X SCH 40S, ASTM A403 WP304",
       "category": "FITTING",
       "size": "3\" x 1\"",
@@ -334,7 +334,7 @@
       "user_requirement": ""
     },
     {
-      "material_id": 7795,
+      "material_id": 718,
       "description": "RED CONC, SMLS, SCH 40 X SCH 40, ASTM A234 WPB",
       "category": "FITTING",
       "size": "3\" x 2\"",
@@ -344,7 +344,7 @@
       "user_requirement": ""
     },
     {
-      "material_id": 7796,
+      "material_id": 719,
       "description": "RED CONC, SMLS, SCH 40S X SCH 40S, ASTM A403 WP304",
       "category": "FITTING",
       "size": "3\" x 2\"",
@@ -354,7 +354,7 @@
       "user_requirement": ""
     },
     {
-      "material_id": 7797,
+      "material_id": 720,
       "description": "RED CONC, SMLS, SCH 80 X SCH 80, ASTM A234 WPB",
       "category": "FITTING",
       "size": "3/4\" x 1/2\"",
@@ -364,7 +364,7 @@
       "user_requirement": ""
     },
     {
-      "material_id": 7974,
+      "material_id": 897,
       "description": "RED. FLG SWRF SCH 40S, 150LB, ASTM A182 F304",
       "category": "FITTING",
       "size": "1 1/2\" x 3/4\"",
@@ -374,7 +374,7 @@
       "user_requirement": ""
     },
     {
-      "material_id": 7976,
+      "material_id": 899,
       "description": "RED. FLG SWRF SCH 80, 150LB, ASTM A105",
       "category": "FITTING",
       "size": "1 1/2\" x 3/4\"",
@@ -384,7 +384,7 @@
       "user_requirement": ""
     },
     {
-      "material_id": 7980,
+      "material_id": 903,
       "description": "RED. FLG SWRF SCH 80, 600LB, ASTM A105",
       "category": "FITTING",
       "size": "1 1/2\" x 3/4\"",
@@ -394,7 +394,7 @@
       "user_requirement": ""
     },
     {
-      "material_id": 8058,
+      "material_id": 981,
       "description": "RED. FLG SWRF SCH 80, 150LB, ASTM A105",
       "category": "FITTING",
       "size": "1\" x 3/4\"",
@@ -404,7 +404,7 @@
       "user_requirement": ""
     },
     {
-      "material_id": 8674,
+      "material_id": 1597,
       "description": "90 ELL, SW, 3000LB, ASTM A182 F304",
       "category": "FITTING",
       "size": "1/2\"",
@@ -414,7 +414,7 @@
       "user_requirement": ""
     },
     {
-      "material_id": 8676,
+      "material_id": 1599,
       "description": "90 ELL, SW, 3000LB, ASTM A105",
       "category": "FITTING",
       "size": "1\"",
@@ -424,7 +424,7 @@
       "user_requirement": ""
     },
     {
-      "material_id": 8680,
+      "material_id": 1603,
       "description": "90 ELL, SW, 3000LB, ASTM A182 F304",
       "category": "FITTING",
       "size": "1\"",
@@ -434,7 +434,7 @@
       "user_requirement": ""
     },
     {
-      "material_id": 8684,
+      "material_id": 1607,
       "description": "90 ELL, SW, 3000LB, ASTM A105",
       "category": "FITTING",
       "size": "1 1/2\"",
@@ -444,7 +444,7 @@
       "user_requirement": ""
     },
     {
-      "material_id": 8716,
+      "material_id": 1639,
       "description": "90 ELL, SW, 3000LB, ASTM A182 F304",
       "category": "FITTING",
       "size": "1 1/2\"",
@@ -454,7 +454,7 @@
       "user_requirement": ""
     },
     {
-      "material_id": 8783,
+      "material_id": 1706,
       "description": "90 ELL, SW, 3000LB, ASTM A105",
       "category": "FITTING",
       "size": "1/2\"",
@@ -464,7 +464,7 @@
       "user_requirement": ""
     },
     {
-      "material_id": 8815,
+      "material_id": 1738,
       "description": "90 ELL, SW, 3000LB, ASTM A105",
       "category": "FITTING",
       "size": "3/4\"",
@@ -474,7 +474,7 @@
       "user_requirement": ""
     },
     {
-      "material_id": 8839,
+      "material_id": 1762,
       "description": "TEE, SW, 3000LB, ASTM A105",
       "category": "FITTING",
       "size": "1 1/2\"",
@@ -484,7 +484,7 @@
       "user_requirement": ""
     },
     {
-      "material_id": 8846,
+      "material_id": 1769,
       "description": "TEE, SW, 3000LB, ASTM A105",
       "category": "FITTING",
       "size": "1\"",
@@ -494,7 +494,7 @@
       "user_requirement": ""
     },
     {
-      "material_id": 8861,
+      "material_id": 1784,
       "description": "TEE, SW, 3000LB, ASTM A182 F304",
       "category": "FITTING",
       "size": "1\"",
@@ -504,7 +504,7 @@
       "user_requirement": ""
     },
     {
-      "material_id": 8862,
+      "material_id": 1785,
       "description": "TEE, SW, 3000LB, ASTM A105",
       "category": "FITTING",
       "size": "1/2\"",
@@ -514,7 +514,7 @@
       "user_requirement": ""
     },
     {
-      "material_id": 8864,
+      "material_id": 1787,
       "description": "TEE RED, SW, 3000LB, ASTM A105",
       "category": "FITTING",
       "size": "1 1/2\" x 1\"",
@@ -524,7 +524,7 @@
       "user_requirement": ""
     },
     {
-      "material_id": 8869,
+      "material_id": 1792,
       "description": "TEE RED, SW, 3000LB, ASTM A105",
       "category": "FITTING",
       "size": "1 1/2\" x 1/2\"",
@@ -534,7 +534,7 @@
       "user_requirement": ""
     },
     {
-      "material_id": 8871,
+      "material_id": 1794,
       "description": "TEE RED, SW, 3000LB, ASTM A105",
       "category": "FITTING",
       "size": "1 1/2\" x 3/4\"",
@@ -544,7 +544,7 @@
       "user_requirement": ""
     },
     {
-      "material_id": 8877,
+      "material_id": 1800,
       "description": "TEE RED, SW, 3000LB, ASTM A105",
       "category": "FITTING",
       "size": "1\" x 1/2\"",
@@ -554,7 +554,7 @@
       "user_requirement": ""
     },
     {
-      "material_id": 8884,
+      "material_id": 1807,
       "description": "TEE RED, SW, 3000LB, ASTM A182 F304",
       "category": "FITTING",
       "size": "1\" x 1/2\"",
@@ -564,7 +564,7 @@
       "user_requirement": ""
     },
     {
-      "material_id": 8887,
+      "material_id": 1810,
       "description": "TEE RED, SW, 3000LB, ASTM A105",
       "category": "FITTING",
       "size": "1\" x 3/4\"",
@@ -574,7 +574,7 @@
       "user_requirement": ""
     },
     {
-      "material_id": 8893,
+      "material_id": 1816,
       "description": "TEE RED, SW, 3000LB, ASTM A105",
       "category": "FITTING",
       "size": "2\" x 1\"",
@@ -584,7 +584,7 @@
       "user_requirement": ""
     },
     {
-      "material_id": 8897,
+      "material_id": 1820,
       "description": "TEE RED, SW, 3000LB, ASTM A105",
       "category": "FITTING",
       "size": "3/4\" x 1/2\"",
@@ -594,7 +594,7 @@
       "user_requirement": ""
     },
     {
-      "material_id": 8902,
+      "material_id": 1825,
       "description": "CAP, SW, 3000LB, ASTM A105",
       "category": "FITTING",
       "size": "1 1/2\"",
@@ -604,7 +604,7 @@
       "user_requirement": ""
     },
     {
-      "material_id": 8903,
+      "material_id": 1826,
       "description": "SOLID HEX. PLUG, NPT(M), 3000LB, ASTM A105",
       "category": "FITTING",
       "size": "1 1/2\"",
@@ -614,7 +614,7 @@
       "user_requirement": ""
     },
     {
-      "material_id": 8904,
+      "material_id": 1827,
       "description": "CAP, SW, 3000LB, ASTM A105",
       "category": "FITTING",
       "size": "1\"",
@@ -624,7 +624,7 @@
       "user_requirement": ""
     },
     {
-      "material_id": 8905,
+      "material_id": 1828,
       "description": "CAP, SW, 3000LB, ASTM A182 F304",
       "category": "FITTING",
       "size": "1\"",
@@ -634,7 +634,7 @@
       "user_requirement": ""
     },
     {
-      "material_id": 8906,
+      "material_id": 1829,
       "description": "SOLID HEX. PLUG, NPT(M), 3000LB, ASTM A105",
       "category": "FITTING",
       "size": "1/2\"",
@@ -644,7 +644,7 @@
       "user_requirement": ""
     },
     {
-      "material_id": 8908,
+      "material_id": 1831,
       "description": "SOLID HEX. PLUG, NPT(M), 3000LB, ASTM A182 F304",
       "category": "FITTING",
       "size": "1/2\"",
@@ -654,7 +654,7 @@
       "user_requirement": ""
     },
     {
-      "material_id": 8909,
+      "material_id": 1832,
       "description": "CAP, SMLS, SCH 40, BW, ASTM A234 WPB",
       "category": "FITTING",
       "size": "2\"",
@@ -664,7 +664,7 @@
       "user_requirement": ""
     },
     {
-      "material_id": 8910,
+      "material_id": 1833,
       "description": "CAP, SW, 3000LB, ASTM A105",
       "category": "FITTING",
       "size": "3/4\"",
@@ -674,7 +674,7 @@
       "user_requirement": ""
     },
     {
-      "material_id": 8911,
+      "material_id": 1834,
       "description": "SOLID HEX. PLUG, NPT(M), 3000LB, ASTM A105",
       "category": "FITTING",
       "size": "3/4\"",
@@ -684,7 +684,7 @@
       "user_requirement": ""
     },
     {
-      "material_id": 8947,
+      "material_id": 1870,
       "description": "SOLID HEX. PLUG, NPT(M), 3000LB, ASTM A182 F304",
       "category": "FITTING",
       "size": "3/4\"",
@@ -694,7 +694,7 @@
       "user_requirement": ""
     },
     {
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       "description": "SOCK O LET, SW, 3000LB, ASTM A182 F304",
       "category": "FITTING",
       "size": "10\" x 1 1/2\"",
@@ -704,7 +704,7 @@
       "user_requirement": ""
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       "category": "FITTING",
       "size": "10\" x 1\"",
@@ -714,7 +714,7 @@
       "user_requirement": ""
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       "category": "FITTING",
       "size": "10\" x 3/4\"",
@@ -724,7 +724,7 @@
       "user_requirement": ""
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       "category": "FITTING",
       "size": "2\" x 1/2\"",
@@ -734,7 +734,7 @@
       "user_requirement": ""
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       "description": "ELL O LET, SW, 3000LB, ASTM A105",
       "category": "FITTING",
       "size": "2\" x 3/4\"",
@@ -744,7 +744,7 @@
       "user_requirement": ""
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       "size": "3\" x 3/4\"",
@@ -754,7 +754,7 @@
       "user_requirement": ""
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       "description": "SOCK O LET, SW, 3000LB, ASTM A105",
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       "size": "3\" x 3/4\"",
@@ -764,7 +764,7 @@
       "user_requirement": ""
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       "description": "SOCK O LET, SW, 3000LB, ASTM A182 F304",
       "category": "FITTING",
       "size": "3\" x 3/4\"",
@@ -774,7 +774,7 @@
       "user_requirement": ""
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       "description": "SOCK O LET, SW, 3000LB, ASTM A105",
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       "size": "3\" x 1\"",
@@ -784,7 +784,7 @@
       "user_requirement": ""
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       "size": "4\" x 3/4\"",
@@ -794,7 +794,7 @@
       "user_requirement": ""
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@@ -804,7 +804,7 @@
       "user_requirement": ""
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       "size": "6\" x 3/4\"",
@@ -818,21 +818,21 @@
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       "material_ids": [
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-        7080
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       "description": "HALF NIPPLE, SMLS, SCH 80S, ASTM A312 TP304 SW X NPT",
       "category": "FITTING",
       "size": "1/2\"",
       "material_grade": "ASTM A312 TP304",
-      "quantity": "3.000",
+      "quantity": 3,
       "unit": "EA",
       "user_requirement": ""
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       "description": "HALF NIPPLE, SMLS, SCH 160, ASTM A106 B SW * NPT",
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@@ -845,22 +845,22 @@
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-        7376
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       "category": "FITTING",
       "size": "1/2\"",
       "material_grade": "ASTM A106 B",
-      "quantity": "9.000",
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       "unit": "EA",
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@@ -873,7 +873,7 @@
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@@ -886,7 +886,7 @@
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@@ -912,7 +912,7 @@
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@@ -951,7 +951,7 @@
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@@ -964,7 +964,7 @@
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@@ -977,7 +977,7 @@
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@@ -990,7 +990,7 @@
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@@ -1003,7 +1003,7 @@
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@@ -1016,7 +1016,7 @@
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@@ -1029,7 +1029,7 @@
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@@ -1042,7 +1042,7 @@
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@@ -1055,7 +1055,7 @@
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@@ -1120,7 +1120,7 @@
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@@ -1133,7 +1133,7 @@
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@@ -1146,7 +1146,7 @@
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@@ -1159,7 +1159,7 @@
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@@ -1185,7 +1185,7 @@
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@@ -1198,7 +1198,7 @@
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@@ -1211,7 +1211,7 @@
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@@ -1224,7 +1224,7 @@
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@@ -1237,7 +1237,7 @@
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@@ -1250,7 +1250,7 @@
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       "material_ids": [
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@@ -1263,7 +1263,7 @@
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@@ -1276,7 +1276,7 @@
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       "material_ids": [
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       "description": "RED. FLG SWRF SCH 80, 600LB, ASTM A105",
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@@ -1289,7 +1289,7 @@
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@@ -1302,7 +1302,7 @@
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@@ -1315,7 +1315,7 @@
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@@ -1328,7 +1328,7 @@
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@@ -1341,7 +1341,7 @@
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@@ -1354,7 +1354,7 @@
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@@ -1367,7 +1367,7 @@
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@@ -1380,7 +1380,7 @@
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@@ -1393,7 +1393,7 @@
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@@ -1406,7 +1406,7 @@
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@@ -1419,7 +1419,7 @@
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@@ -1432,7 +1432,7 @@
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@@ -1445,7 +1445,7 @@
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@@ -1458,7 +1458,7 @@
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@@ -1471,7 +1471,7 @@
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@@ -1484,7 +1484,7 @@
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@@ -1497,7 +1497,7 @@
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@@ -1510,7 +1510,7 @@
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@@ -1523,7 +1523,7 @@
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@@ -1536,7 +1536,7 @@
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@@ -1549,7 +1549,7 @@
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diff --git a/backend/exports/PR-20251014-002.json b/backend/exports/PR-20251014-002.json
index 84e7b3f..079a90f 100644
--- a/backend/exports/PR-20251014-002.json
+++ b/backend/exports/PR-20251014-002.json
@@ -1,1836 +1,745 @@
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 }
\ No newline at end of file
diff --git a/backend/exports/PR-20251014-003.json b/backend/exports/PR-20251014-003.json
index 3418fe5..eac24cc 100644
--- a/backend/exports/PR-20251014-003.json
+++ b/backend/exports/PR-20251014-003.json
@@ -1,814 +1,404 @@
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+      "material_id": 1885,
+      "description": "WOOD ORIFICE, 300LB",
+      "category": "FLANGE",
+      "size": "8\"",
+      "material_grade": "-",
+      "quantity": 2,
+      "unit": "EA",
+      "user_requirement": ""
+    },
+    {
+      "material_id": 2013,
+      "description": "SIGHT GLASS, FLG, 150LB",
+      "category": "FLANGE",
+      "size": "1\"",
+      "material_grade": "SS",
+      "quantity": 6,
+      "unit": "EA",
+      "user_requirement": ""
+    },
+    {
+      "material_id": 2019,
+      "description": "SIGHT GLASS, FLG, 150LB",
+      "category": "FLANGE",
+      "size": "1/2\"",
+      "material_grade": "SS",
+      "quantity": 5,
+      "unit": "EA",
+      "user_requirement": ""
+    },
+    {
+      "material_id": 2024,
+      "description": "SIGHT GLASS, FLG, 150LB",
+      "category": "FLANGE",
+      "size": "2\"",
+      "material_grade": "SS",
+      "quantity": 2,
+      "unit": "EA",
+      "user_requirement": ""
+    },
+    {
+      "material_id": 2027,
+      "description": "STRAINER, FLG, 150LB",
+      "category": "FLANGE",
+      "size": "2\"",
+      "material_grade": "-",
       "quantity": 1,
       "unit": "EA",
       "user_requirement": ""
@@ -816,1018 +406,521 @@
   ],
   "grouped_materials": [
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       "material_ids": [
-        35405,
-        35407
+        723
       ],
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-      "category": "FITTING",
-      "size": "1/2\"",
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-        35700,
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-      "size": "1/2\"",
-      "material_grade": "ASTM A106 B",
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-      "unit": "EA",
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-      "material_ids": [
-        36016
-      ],
-      "description": "90 LR ELL, SMLS, SCH 40S, ASTM A403 WP304",
-      "category": "FITTING",
+      "description": "FLG WELD NECK RF SCH 40S, 150LB, ASTM A182 F304",
+      "category": "FLANGE",
       "size": "10\"",
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-      "unit": "EA",
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-      "category": "FITTING",
-      "size": "1 1/2\" x 1\"",
-      "material_grade": "ASTM A234 WPB",
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       "unit": "EA",
       "user_requirement": ""
     },
     {
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diff --git a/backend/exports/PR-20251014-004.json b/backend/exports/PR-20251014-004.json
new file mode 100644
index 0000000..9ac8d03
--- /dev/null
+++ b/backend/exports/PR-20251014-004.json
@@ -0,0 +1,929 @@
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+      "group_key": "FLG WELD NECK RF SCH 40, 150LB, ASTM A105|2\"|undefined|ASTM A105",
+      "material_ids": [
+        4268
+      ],
+      "description": "FLG WELD NECK RF SCH 40, 150LB, ASTM A105",
+      "category": "FLANGE",
+      "size": "2\"",
+      "material_grade": "ASTM A105",
+      "quantity": 36,
+      "unit": "EA",
+      "user_requirement": ""
+    },
+    {
+      "group_key": "FLG WELD NECK RF SCH 40, 300LB, ASTM A105|2\"|undefined|ASTM A105",
+      "material_ids": [
+        4304
+      ],
+      "description": "FLG WELD NECK RF SCH 40, 300LB, ASTM A105",
+      "category": "FLANGE",
+      "size": "2\"",
+      "material_grade": "ASTM A105",
+      "quantity": 6,
+      "unit": "EA",
+      "user_requirement": ""
+    },
+    {
+      "group_key": "FLG WELD NECK RF SCH 40S, 150LB, ASTM A182 F304|2\"|undefined|ASTM A182 F304",
+      "material_ids": [
+        4310
+      ],
+      "description": "FLG WELD NECK RF SCH 40S, 150LB, ASTM A182 F304",
+      "category": "FLANGE",
+      "size": "2\"",
+      "material_grade": "ASTM A182 F304",
+      "quantity": 7,
+      "unit": "EA",
+      "user_requirement": ""
+    },
+    {
+      "group_key": "FLG WELD NECK RF SCH 40, 600LB, ASTM A105|3\"|undefined|ASTM A105",
+      "material_ids": [
+        4318
+      ],
+      "description": "FLG WELD NECK RF SCH 40, 600LB, ASTM A105",
+      "category": "FLANGE",
+      "size": "3\"",
+      "material_grade": "ASTM A105",
+      "quantity": 8,
+      "unit": "EA",
+      "user_requirement": ""
+    },
+    {
+      "group_key": "FLG WELD NECK RF SCH 40S, 600LB, ASTM A182 F304|3\"|undefined|ASTM A182 F304",
+      "material_ids": [
+        4323
+      ],
+      "description": "FLG WELD NECK RF SCH 40S, 600LB, ASTM A182 F304",
+      "category": "FLANGE",
+      "size": "3\"",
+      "material_grade": "ASTM A182 F304",
+      "quantity": 2,
+      "unit": "EA",
+      "user_requirement": ""
+    },
+    {
+      "group_key": "FLG WELD NECK RF SCH 40, 150LB, ASTM A105|3\"|undefined|ASTM A105",
+      "material_ids": [
+        4325
+      ],
+      "description": "FLG WELD NECK RF SCH 40, 150LB, ASTM A105",
+      "category": "FLANGE",
+      "size": "3\"",
+      "material_grade": "ASTM A105",
+      "quantity": 12,
+      "unit": "EA",
+      "user_requirement": ""
+    },
+    {
+      "group_key": "FLG WELD NECK RF SCH 40, 300LB, ASTM A105|3\"|undefined|ASTM A105",
+      "material_ids": [
+        4337
+      ],
+      "description": "FLG WELD NECK RF SCH 40, 300LB, ASTM A105",
+      "category": "FLANGE",
+      "size": "3\"",
+      "material_grade": "ASTM A105",
+      "quantity": 2,
+      "unit": "EA",
+      "user_requirement": ""
+    },
+    {
+      "group_key": "FLG WELD NECK RF SCH 40S, 150LB, ASTM A182 F304|3\"|undefined|ASTM A182 F304",
+      "material_ids": [
+        4342
+      ],
+      "description": "FLG WELD NECK RF SCH 40S, 150LB, ASTM A182 F304",
+      "category": "FLANGE",
+      "size": "3\"",
+      "material_grade": "ASTM A182 F304",
+      "quantity": 9,
+      "unit": "EA",
+      "user_requirement": ""
+    },
+    {
+      "group_key": "FLG WELD NECK RF SCH 40, 300LB, ASTM A105|4\"|undefined|ASTM A105",
+      "material_ids": [
+        4351
+      ],
+      "description": "FLG WELD NECK RF SCH 40, 300LB, ASTM A105",
+      "category": "FLANGE",
+      "size": "4\"",
+      "material_grade": "ASTM A105",
+      "quantity": 3,
+      "unit": "EA",
+      "user_requirement": ""
+    },
+    {
+      "group_key": "FLG WELD NECK RF SCH 40, 150LB, ASTM A105|6\"|undefined|ASTM A105",
+      "material_ids": [
+        4354
+      ],
+      "description": "FLG WELD NECK RF SCH 40, 150LB, ASTM A105",
+      "category": "FLANGE",
+      "size": "6\"",
+      "material_grade": "ASTM A105",
+      "quantity": 10,
+      "unit": "EA",
+      "user_requirement": ""
+    },
+    {
+      "group_key": "FLG SWRF SCH 40S, 150LB, ASTM A182 F304|1/2\"|undefined|ASTM A182 F304",
+      "material_ids": [
+        4364
+      ],
+      "description": "FLG SWRF SCH 40S, 150LB, ASTM A182 F304",
+      "category": "FLANGE",
+      "size": "1/2\"",
+      "material_grade": "ASTM A182 F304",
+      "quantity": 14,
+      "unit": "EA",
+      "user_requirement": ""
+    },
+    {
+      "group_key": "FLG SWRF SCH 80, 150LB, ASTM A105|3/4\"|undefined|ASTM A105",
+      "material_ids": [
+        4376
+      ],
+      "description": "FLG SWRF SCH 80, 150LB, ASTM A105",
+      "category": "FLANGE",
+      "size": "3/4\"",
+      "material_grade": "ASTM A105",
+      "quantity": 15,
+      "unit": "EA",
+      "user_requirement": ""
+    },
+    {
+      "group_key": "FLG SWRF SCH 40S, 150LB, ASTM A182 F304|1\"|undefined|ASTM A182 F304",
+      "material_ids": [
+        4380
+      ],
+      "description": "FLG SWRF SCH 40S, 150LB, ASTM A182 F304",
+      "category": "FLANGE",
+      "size": "1\"",
+      "material_grade": "ASTM A182 F304",
+      "quantity": 9,
+      "unit": "EA",
+      "user_requirement": ""
+    },
+    {
+      "group_key": "FLG SWRF SCH 80, 150LB, ASTM A105|1\"|undefined|ASTM A105",
+      "material_ids": [
+        4381
+      ],
+      "description": "FLG SWRF SCH 80, 150LB, ASTM A105",
+      "category": "FLANGE",
+      "size": "1\"",
+      "material_grade": "ASTM A105",
+      "quantity": 66,
+      "unit": "EA",
+      "user_requirement": ""
+    },
+    {
+      "group_key": "FLG SWRF SCH 80, 600LB, ASTM A105|1\"|undefined|ASTM A105",
+      "material_ids": [
+        4385
+      ],
+      "description": "FLG SWRF SCH 80, 600LB, ASTM A105",
+      "category": "FLANGE",
+      "size": "1\"",
+      "material_grade": "ASTM A105",
+      "quantity": 6,
+      "unit": "EA",
+      "user_requirement": ""
+    },
+    {
+      "group_key": "FLG SWRF SCH 40S, 150LB, ASTM A182 F304|1 1/2\"|undefined|ASTM A182 F304",
+      "material_ids": [
+        4387
+      ],
+      "description": "FLG SWRF SCH 40S, 150LB, ASTM A182 F304",
+      "category": "FLANGE",
+      "size": "1 1/2\"",
+      "material_grade": "ASTM A182 F304",
+      "quantity": 8,
+      "unit": "EA",
+      "user_requirement": ""
+    },
+    {
+      "group_key": "FLG SWRF SCH 80, 150LB, ASTM A105|1 1/2\"|undefined|ASTM A105",
+      "material_ids": [
+        4395
+      ],
+      "description": "FLG SWRF SCH 80, 150LB, ASTM A105",
+      "category": "FLANGE",
+      "size": "1 1/2\"",
+      "material_grade": "ASTM A105",
+      "quantity": 40,
+      "unit": "EA",
+      "user_requirement": ""
+    },
+    {
+      "group_key": "FLG SWRF SCH 80, 600LB, ASTM A105|1 1/2\"|undefined|ASTM A105",
+      "material_ids": [
+        4431
+      ],
+      "description": "FLG SWRF SCH 80, 600LB, ASTM A105",
+      "category": "FLANGE",
+      "size": "1 1/2\"",
+      "material_grade": "ASTM A105",
+      "quantity": 5,
+      "unit": "EA",
+      "user_requirement": ""
+    },
+    {
+      "group_key": "FLG SWRF SCH 40S, 600LB, ASTM A182 F304|1\"|undefined|ASTM A182 F304",
+      "material_ids": [
+        4452
+      ],
+      "description": "FLG SWRF SCH 40S, 600LB, ASTM A182 F304",
+      "category": "FLANGE",
+      "size": "1\"",
+      "material_grade": "ASTM A182 F304",
+      "quantity": 1,
+      "unit": "EA",
+      "user_requirement": ""
+    },
+    {
+      "group_key": "FLG SWRF SCH 80, 300LB, ASTM A105|1 1/2\"|undefined|ASTM A105",
+      "material_ids": [
+        4525
+      ],
+      "description": "FLG SWRF SCH 80, 300LB, ASTM A105",
+      "category": "FLANGE",
+      "size": "1 1/2\"",
+      "material_grade": "ASTM A105",
+      "quantity": 3,
+      "unit": "EA",
+      "user_requirement": ""
+    },
+    {
+      "group_key": "FLG SWRF SCH 80, 150LB, ASTM A105|1/2\"|undefined|ASTM A105",
+      "material_ids": [
+        4530
+      ],
+      "description": "FLG SWRF SCH 80, 150LB, ASTM A105",
+      "category": "FLANGE",
+      "size": "1/2\"",
+      "material_grade": "ASTM A105",
+      "quantity": 57,
+      "unit": "EA",
+      "user_requirement": ""
+    },
+    {
+      "group_key": "FLG SWRF SCH 40S, 150LB, ASTM A182 F304|3/4\"|undefined|ASTM A182 F304",
+      "material_ids": [
+        4587
+      ],
+      "description": "FLG SWRF SCH 40S, 150LB, ASTM A182 F304",
+      "category": "FLANGE",
+      "size": "3/4\"",
+      "material_grade": "ASTM A182 F304",
+      "quantity": 7,
+      "unit": "EA",
+      "user_requirement": ""
+    },
+    {
+      "group_key": "FLG SWRF SCH 40S, 300LB, ASTM A182 F304|3/4\"|undefined|ASTM A182 F304",
+      "material_ids": [
+        4594
+      ],
+      "description": "FLG SWRF SCH 40S, 300LB, ASTM A182 F304",
+      "category": "FLANGE",
+      "size": "3/4\"",
+      "material_grade": "ASTM A182 F304",
+      "quantity": 1,
+      "unit": "EA",
+      "user_requirement": ""
+    },
+    {
+      "group_key": "FLG SWRF SCH 40S, 600LB, ASTM A182 F304|3/4\"|undefined|ASTM A182 F304",
+      "material_ids": [
+        4595
+      ],
+      "description": "FLG SWRF SCH 40S, 600LB, ASTM A182 F304",
+      "category": "FLANGE",
+      "size": "3/4\"",
+      "material_grade": "ASTM A182 F304",
+      "quantity": 1,
+      "unit": "EA",
+      "user_requirement": ""
+    },
+    {
+      "group_key": "FLG SWRF SCH 80, 300LB, ASTM A105|3/4\"|undefined|ASTM A105",
+      "material_ids": [
+        4607
+      ],
+      "description": "FLG SWRF SCH 80, 300LB, ASTM A105",
+      "category": "FLANGE",
+      "size": "3/4\"",
+      "material_grade": "ASTM A105",
+      "quantity": 2,
+      "unit": "EA",
+      "user_requirement": ""
+    },
+    {
+      "group_key": "FLG SWRF SCH 80, 600LB, ASTM A105|3/4\"|undefined|ASTM A105",
+      "material_ids": [
+        4609
+      ],
+      "description": "FLG SWRF SCH 80, 600LB, ASTM A105",
+      "category": "FLANGE",
+      "size": "3/4\"",
+      "material_grade": "ASTM A105",
+      "quantity": 5,
+      "unit": "EA",
+      "user_requirement": ""
+    },
+    {
+      "group_key": "ORIFICE, 150LB|10\"|undefined|-",
+      "material_ids": [
+        5413
+      ],
+      "description": "ORIFICE, 150LB",
+      "category": "FLANGE",
+      "size": "10\"",
+      "material_grade": "-",
+      "quantity": 1,
+      "unit": "EA",
+      "user_requirement": ""
+    },
+    {
+      "group_key": "WOOD ORIFICE, 300LB|10\"|undefined|-",
+      "material_ids": [
+        5415
+      ],
+      "description": "WOOD ORIFICE, 300LB",
+      "category": "FLANGE",
+      "size": "10\"",
+      "material_grade": "-",
+      "quantity": 2,
+      "unit": "EA",
+      "user_requirement": ""
+    },
+    {
+      "group_key": "WOOD ORIFICE, 600LB|3\"|undefined|-",
+      "material_ids": [
+        5417
+      ],
+      "description": "WOOD ORIFICE, 600LB",
+      "category": "FLANGE",
+      "size": "3\"",
+      "material_grade": "-",
+      "quantity": 1,
+      "unit": "EA",
+      "user_requirement": ""
+    },
+    {
+      "group_key": "WOOD ORIFICE, 300LB|4\"|undefined|-",
+      "material_ids": [
+        5418
+      ],
+      "description": "WOOD ORIFICE, 300LB",
+      "category": "FLANGE",
+      "size": "4\"",
+      "material_grade": "-",
+      "quantity": 2,
+      "unit": "EA",
+      "user_requirement": ""
+    },
+    {
+      "group_key": "WOOD ORIFICE, 300LB|5\"|undefined|-",
+      "material_ids": [
+        5420
+      ],
+      "description": "WOOD ORIFICE, 300LB",
+      "category": "FLANGE",
+      "size": "5\"",
+      "material_grade": "-",
+      "quantity": 1,
+      "unit": "EA",
+      "user_requirement": ""
+    },
+    {
+      "group_key": "WOOD ORIFICE, 600LB|5\"|undefined|-",
+      "material_ids": [
+        5421
+      ],
+      "description": "WOOD ORIFICE, 600LB",
+      "category": "FLANGE",
+      "size": "5\"",
+      "material_grade": "-",
+      "quantity": 1,
+      "unit": "EA",
+      "user_requirement": ""
+    },
+    {
+      "group_key": "WOOD ORIFICE, 150LB|6\"|undefined|-",
+      "material_ids": [
+        5422
+      ],
+      "description": "WOOD ORIFICE, 150LB",
+      "category": "FLANGE",
+      "size": "6\"",
+      "material_grade": "-",
+      "quantity": 2,
+      "unit": "EA",
+      "user_requirement": ""
+    },
+    {
+      "group_key": "WOOD ORIFICE, 300LB|8\"|undefined|-",
+      "material_ids": [
+        5424
+      ],
+      "description": "WOOD ORIFICE, 300LB",
+      "category": "FLANGE",
+      "size": "8\"",
+      "material_grade": "-",
+      "quantity": 2,
+      "unit": "EA",
+      "user_requirement": ""
+    },
+    {
+      "group_key": "SIGHT GLASS, FLG, 150LB|1\"|undefined|SS",
+      "material_ids": [
+        5552
+      ],
+      "description": "SIGHT GLASS, FLG, 150LB",
+      "category": "FLANGE",
+      "size": "1\"",
+      "material_grade": "SS",
+      "quantity": 6,
+      "unit": "EA",
+      "user_requirement": ""
+    },
+    {
+      "group_key": "SIGHT GLASS, FLG, 150LB|1/2\"|undefined|SS",
+      "material_ids": [
+        5558
+      ],
+      "description": "SIGHT GLASS, FLG, 150LB",
+      "category": "FLANGE",
+      "size": "1/2\"",
+      "material_grade": "SS",
+      "quantity": 5,
+      "unit": "EA",
+      "user_requirement": ""
+    },
+    {
+      "group_key": "SIGHT GLASS, FLG, 150LB|2\"|undefined|SS",
+      "material_ids": [
+        5563
+      ],
+      "description": "SIGHT GLASS, FLG, 150LB",
+      "category": "FLANGE",
+      "size": "2\"",
+      "material_grade": "SS",
+      "quantity": 2,
+      "unit": "EA",
+      "user_requirement": ""
+    },
+    {
+      "group_key": "STRAINER, FLG, 150LB|2\"|undefined|-",
+      "material_ids": [
+        5566
+      ],
+      "description": "STRAINER, FLG, 150LB",
+      "category": "FLANGE",
+      "size": "2\"",
+      "material_grade": "-",
+      "quantity": 1,
+      "unit": "EA",
+      "user_requirement": ""
+    }
+  ]
+}
\ No newline at end of file
diff --git a/backend/exports/PR-20251014-005.json b/backend/exports/PR-20251014-005.json
new file mode 100644
index 0000000..a702aba
--- /dev/null
+++ b/backend/exports/PR-20251014-005.json
@@ -0,0 +1,55 @@
+{
+  "request_no": "PR-20251014-005",
+  "job_no": "TK-MP-DEV-001",
+  "created_at": "2025-10-14T06:23:18.137603",
+  "materials": [
+    {
+      "material_id": 5450,
+      "description": "ON/OFF VALVE, FLG, 600LB",
+      "category": "VALVE",
+      "size": "1\"",
+      "material_grade": "-",
+      "quantity": 1,
+      "unit": "EA",
+      "user_requirement": ""
+    },
+    {
+      "material_id": 5451,
+      "description": "CHECK VALVE, LIFT, SW, 800LB",
+      "category": "VALVE",
+      "size": "1 1/2\"",
+      "material_grade": "-",
+      "quantity": 2,
+      "unit": "EA",
+      "user_requirement": ""
+    }
+  ],
+  "grouped_materials": [
+    {
+      "group_key": "ON/OFF VALVE, FLG, 600LB|1\"|undefined|-",
+      "material_ids": [
+        5450
+      ],
+      "description": "ON/OFF VALVE, FLG, 600LB",
+      "category": "VALVE",
+      "size": "1\"",
+      "material_grade": "-",
+      "quantity": 1,
+      "unit": "EA",
+      "user_requirement": ""
+    },
+    {
+      "group_key": "CHECK VALVE, LIFT, SW, 800LB|1 1/2\"|undefined|-",
+      "material_ids": [
+        5451
+      ],
+      "description": "CHECK VALVE, LIFT, SW, 800LB",
+      "category": "VALVE",
+      "size": "1 1/2\"",
+      "material_grade": "-",
+      "quantity": 2,
+      "unit": "EA",
+      "user_requirement": ""
+    }
+  ]
+}
\ No newline at end of file
diff --git a/frontend/src/pages/PurchaseRequestPage.jsx b/frontend/src/pages/PurchaseRequestPage.jsx
index 7eadde7..ffd6c1d 100644
--- a/frontend/src/pages/PurchaseRequestPage.jsx
+++ b/frontend/src/pages/PurchaseRequestPage.jsx
@@ -53,14 +53,19 @@ const PurchaseRequestPage = ({ onNavigate, fileId, jobNo, selectedProject }) =>
 
     const handleDownloadExcel = async (requestId, requestNo) => {
         try {
+            console.log('📥 엑셀 다운로드 시작:', requestId, requestNo);
             // 서버에서 자재 데이터 가져오기
             const response = await api.get(`/purchase-request/${requestId}/download-excel`);
+            console.log('📦 서버 응답:', response.data);
             
             if (response.data.success) {
                 const materials = response.data.materials;
                 const groupedMaterials = response.data.grouped_materials || [];
                 const jobNo = response.data.job_no;
                 
+                console.log('📊 materials:', materials.length, '개');
+                console.log('📊 groupedMaterials:', groupedMaterials.length, '개');
+                
                 // 사용자 요구사항 매핑
                 const userRequirements = {};
                 materials.forEach(material => {
@@ -69,26 +74,64 @@ const PurchaseRequestPage = ({ onNavigate, fileId, jobNo, selectedProject }) =>
                     }
                 });
                 
-                // 그룹화된 자재가 있으면 그것을 사용, 없으면 원본 자재 사용
-                const dataToExport = groupedMaterials.length > 0 ? groupedMaterials : materials;
+                // 개별 자재 사용 (BOM 페이지와 동일하게)
+                // groupedMaterials는 일부 자재가 누락될 수 있으므로 materials 사용
+                const dataToExport = materials;
                 
                 // 파일명 생성
                 const timestamp = new Date().toISOString().split('T')[0];
                 const fileName = `${jobNo}_${requestNo}_${timestamp}.xlsx`;
                 
-                // 기존 엑셀 유틸리티 사용하여 엑셀 생성
-                // 그룹화된 데이터와 사용자 요구사항 전달
-                exportMaterialsToExcel(dataToExport, fileName, {
+                console.log('📄 내보낼 데이터:', dataToExport.length, '개');
+                console.log('📄 첫 번째 자재:', dataToExport[0]);
+                
+                // materials 데이터를 BOM 형식으로 변환
+                const materialsForExport = materials.map(m => {
+                    // description에서 품목명 추출 (NIPPLE, ELBOW, TEE 등)
+                    const desc = m.description || '';
+                    const category = m.category || 'UNKNOWN';
+                    
+                    return {
+                        ...m,
+                        classified_category: category,
+                        original_description: desc,
+                        size_spec: m.size,
+                        size_inch: m.size,
+                        material_grade: m.material_grade,
+                        full_material_grade: m.material_grade,
+                        schedule: m.schedule,
+                        quantity: m.quantity,
+                        unit: m.unit,
+                        // FITTING의 경우 타입 정보 추가
+                        fitting_details: category === 'FITTING' ? {
+                            fitting_type: desc.includes('NIPPLE') ? 'NIPPLE' :
+                                        desc.includes('ELBOW') ? 'ELBOW' :
+                                        desc.includes('TEE') ? 'TEE' :
+                                        desc.includes('REDUCER') ? 'REDUCER' :
+                                        desc.includes('CAP') ? 'CAP' :
+                                        desc.includes('PLUG') ? 'PLUG' :
+                                        desc.includes('COUPLING') ? 'COUPLING' : 'FITTING'
+                        } : undefined
+                    };
+                });
+                
+                console.log('🔄 BOM 형식으로 변환 완료:', materialsForExport.length, '개');
+                
+                // 기존 엑셀 유틸리티 사용
+                exportMaterialsToExcel(materialsForExport, fileName, {
                     jobNo,
                     requestNo,
                     userRequirements
                 });
+                
+                console.log('✅ 엑셀 내보내기 완료');
             } else {
+                console.error('❌ 서버 응답 실패:', response.data);
                 alert('데이터를 가져올 수 없습니다');
             }
         } catch (error) {
-            console.error('Failed to download excel:', error);
-            alert('엑셀 다운로드 실패');
+            console.error('❌ 엑셀 다운로드 실패:', error);
+            alert('엑셀 다운로드 실패: ' + error.message);
         }
     };
 
diff --git a/frontend/src/utils/excelExport.js b/frontend/src/utils/excelExport.js
index 8a87753..94af793 100644
--- a/frontend/src/utils/excelExport.js
+++ b/frontend/src/utils/excelExport.js
@@ -157,7 +157,59 @@ const formatMaterialForExcel = (material, includeComparison = false) => {
   } else if (category === 'FITTING') {
     itemName = material.fitting_details?.fitting_type || 'FITTING';
   } else if (category === 'FLANGE') {
-    itemName = 'FLANGE';
+    // 플랜지 타입 추출
+    const desc = cleanDescription.toUpperCase();
+    console.log('🔍 FLANGE 품목명 추출:', cleanDescription);
+    
+    if (material.flange_details) {
+      console.log('  flange_details:', material.flange_details);
+      const flangeType = material.flange_details.flange_type || '';
+      const originalFlangeType = material.flange_details.original_flange_type || '';
+      const facingType = material.flange_details.facing_type || '';
+      
+      // 특수 플랜지 타입 우선
+      if (desc.includes('ORIFICE')) {
+        itemName = 'ORIFICE FLANGE';
+      } else if (desc.includes('SPECTACLE')) {
+        itemName = 'SPECTACLE BLIND';
+      } else if (desc.includes('PADDLE')) {
+        itemName = 'PADDLE BLIND';
+      } else if (desc.includes('SPACER')) {
+        itemName = 'SPACER';
+      } else if (desc.includes('BLIND')) {
+        itemName = 'BLIND FLANGE';
+      } else {
+        // 일반 플랜지: flange_type 사용 (WN RF, SO RF 등)
+        itemName = flangeType || 'FLANGE';
+      }
+    } else {
+      console.log('  flange_details 없음, description에서 추출');
+      // flange_details가 없으면 description에서 추출
+      if (desc.includes('ORIFICE')) {
+        itemName = 'ORIFICE FLANGE';
+      } else if (desc.includes('SPECTACLE') || desc.includes('SPEC')) {
+        itemName = 'SPECTACLE BLIND';
+      } else if (desc.includes('PADDLE')) {
+        itemName = 'PADDLE BLIND';
+      } else if (desc.includes('SPACER')) {
+        itemName = 'SPACER';
+      } else if (desc.includes('BLIND')) {
+        itemName = 'BLIND FLANGE';
+      } else if (desc.includes(' SW') || desc.includes(',SW') || desc.includes(', SW')) {
+        itemName = 'FLANGE SW';
+      } else if (desc.includes(' BW') || desc.includes(',BW') || desc.includes(', BW')) {
+        itemName = 'FLANGE BW';
+      } else if (desc.includes('RTJ')) {
+        itemName = 'FLANGE RTJ';
+      } else if (desc.includes(' FF') || desc.includes('FULL FACE')) {
+        itemName = 'FLANGE FF';
+      } else if (desc.includes(' RF') || desc.includes('RAISED')) {
+        itemName = 'FLANGE RF';
+      } else {
+        itemName = 'FLANGE';
+      }
+    }
+    console.log('  → 품목명:', itemName);
   } else if (category === 'VALVE') {
     itemName = 'VALVE';
   } else if (category === 'GASKET') {
@@ -494,19 +546,27 @@ const formatMaterialForExcel = (material, includeComparison = false) => {
  */
 export const exportMaterialsToExcel = (materials, filename, additionalInfo = {}) => {
   try {
+    console.log('🔧 exportMaterialsToExcel 시작:', materials.length, '개 자재');
+    
     // 카테고리별로 그룹화
     const categoryGroups = groupMaterialsByCategory(materials);
+    console.log('📁 카테고리별 그룹:', Object.keys(categoryGroups).map(k => `${k}: ${categoryGroups[k].length}개`));
     
     // 전체 자재 합치기 (먼저 계산)
     const consolidatedMaterials = consolidateMaterials(materials);
+    console.log('📦 합쳐진 자재:', consolidatedMaterials.length, '개');
     
     // 새 워크북 생성
     const workbook = XLSX.utils.book_new();
     
     // 카테고리별 시트 생성 (합쳐진 자재)
     Object.entries(categoryGroups).forEach(([category, items]) => {
+      console.log(`📄 ${category} 시트 생성 중... (${items.length}개 자재)`);
       const consolidatedItems = consolidateMaterials(items);
+      console.log(`  → 합쳐진 결과: ${consolidatedItems.length}개`);
+      
       const formattedItems = consolidatedItems.map(material => formatMaterialForExcel(material));
+      console.log(`  → 포맷 완료: ${formattedItems.length}개`);
       
       if (formattedItems.length > 0) {
         const categorySheet = XLSX.utils.json_to_sheet(formattedItems);