{
  "request_no": "PR-20251014-005",
  "job_no": "TKG-25000P",
  "created_at": "2025-10-14T02:14:05.318457",
  "materials": [
    {
      "material_id": 78247,
      "description": "FLG WELD NECK RF SCH 40S, 150LB, ASTM A182 F304",
      "category": "FLANGE",
      "size": "10\"",
      "material_grade": "ASTM A182 F304",
      "quantity": 5,
      "unit": "EA",
      "user_requirement": ""
    }
  ],
  "grouped_materials": [
    {
      "group_key": "FLG WELD NECK RF SCH 40S, 150LB, ASTM A182 F304|10\"|undefined|ASTM A182 F304",
      "material_ids": [
        78247
      ],
      "description": "FLG WELD NECK RF SCH 40S, 150LB, ASTM A182 F304",
      "category": "FLANGE",
      "size": "10\"",
      "material_grade": "ASTM A182 F304",
      "quantity": 5,
      "unit": "EA",
      "user_requirement": ""
    }
  ]
}