{
  "request_no": "PR-20251014-010",
  "job_no": "TK-MP-TEST-001",
  "created_at": "2025-10-14T02:24:14.814790",
  "materials": [
    {
      "material_id": 90052,
      "description": "ON/OFF VALVE, FLG, 600LB",
      "category": "VALVE",
      "size": "1\"",
      "material_grade": "-",
      "quantity": 1,
      "unit": "EA",
      "user_requirement": ""
    },
    {
      "material_id": 90053,
      "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": [
        90052
      ],
      "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": [
        90053
      ],
      "description": "CHECK VALVE, LIFT, SW, 800LB",
      "category": "VALVE",
      "size": "1 1/2\"",
      "material_grade": "-",
      "quantity": 2,
      "unit": "EA",
      "user_requirement": ""
    }
  ]
}