[
 {
  "item": "Bearing Assembly",
  "items": [
   {
    "item_code": "Base Bearing Plate",
    "qty": 1.0,
    "rate": 15.0
   },
   {
    "item_code": "Bearing Block",
    "qty": 1.0,
    "rate": 10.0
   },
   {
    "item_code": "Bearing Collar",
    "qty": 2.0,
    "rate": 20.0
   },
   {
    "item_code": "Bearing Pipe",
    "qty": 1.0,
    "rate": 15.0
   },
   {
    "item_code": "Upper Bearing Plate",
    "qty": 1.0,
    "rate": 50.0
   }
  ]
 },
 {
  "item": "Wind Mill A Series",
  "items": [
   {
    "item_code": "Base Bearing Plate",
    "qty": 1.0,
    "rate": 15.0
   },
   {
    "item_code": "Base Plate",
    "qty": 1.0,
    "rate": 20.0
   },
   {
    "item_code": "Bearing Block",
    "qty": 1.0,
    "rate": 10.0
   },
   {
    "item_code": "Bearing Pipe",
    "qty": 1.0,
    "rate": 15.0
   },
   {
    "item_code": "External Disc",
    "qty": 1.0,
    "rate": 45.0
   },
   {
    "item_code": "Shaft",
    "qty": 1.0,
    "rate": 30.0
   },
   {
    "item_code": "Wing Sheet",
    "qty": 4.0,
    "rate": 22.0
   }
  ]
 },
 {
  "item": "Wind MIll C Series",
  "items": [
   {
    "item_code": "Base Plate",
    "qty": 2.0,
    "rate": 20.0
   },
   {
    "item_code": "Internal Disc",
    "qty": 1.0,
    "rate": 33.0
   },
   {
    "item_code": "External Disc",
    "qty": 1.0,
    "rate": 45.0
   },
   {
    "item_code": "Bearing Assembly",
    "qty": 1.0,
    "rate": 130.0
   },
   {
    "item_code": "Wing Sheet",
    "qty": 3.0,
    "rate": 22.0
   }
  ]
 },
 {
  "item": "Wind Turbine-S",
  "with_operations": 1,
  "operations": [
   {
    "operation": "Prepare Frame",
    "time_in_mins": 30.0,
    "workstation": "Drilling Machine 1"
   },
   {
    "operation": "Setup Fixtures",
    "time_in_mins": 15.0,
    "workstation": "Assembly Station 1"
   },
   {
    "operation": "Assembly Operation",
    "time_in_mins": 30.0,
    "workstation": "Assembly Station 1"
   },
   {
    "operation": "Wiring",
    "time_in_mins": 20.0,
    "workstation": "Assembly Station 1"
   },
   {
    "operation": "Testing",
    "time_in_mins": 10.0,
    "workstation": "Packing and Testing Station"
   },
   {
    "operation": "Packing",
    "time_in_mins": 25.0,
    "workstation": "Packing and Testing Station"
   }
  ],
  "items": [
   {
    "item_code": "Base Bearing Plate",
    "qty": 1.0,
    "rate": 15.0
   },
   {
    "item_code": "Base Plate",
    "qty": 1.0,
    "rate": 20.0
   },
   {
    "item_code": "Bearing Collar",
    "qty": 1.0,
    "rate": 20.0
   },
   {
    "item_code": "Blade Rib",
    "qty": 1.0,
    "rate": 10.0
   },
   {
    "item_code": "Shaft",
    "qty": 1.0,
    "rate": 30.0
   },
   {
    "item_code": "Wing Sheet",
    "qty": 2.0,
    "rate": 22.0
   }
  ]
 },
 {
  "item": "Base Plate",
  "items": [
   {
    "item_code": "Base Plate Un Painted",
    "qty": 1.0,
    "rate": 16.0
   }
  ]
 }
]