Expected Format:

[
  {
    "name": "Product Name",
    "category": "wall",
    "subcategory": "plasterboard",
    "supplier_id": 1,
    "rw": 45,
    "frl": "120/120/120",
    "r_value": 2.5,
    "thickness": 13,
    "price_per_sqm": 24.99,
    "description": "Product description"
  }
]