[
 {
  "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", 
  "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
   }
  ]
 }
]