For the industry "Abrasive, Asbestos, and Miscellaneous Nonmetallic Mineral Products", sub-industry "Abrasive Products (except steel wool with or without soap)", product-group "Nonwoven Abrasives" and sub-product-group "Nonwoven Discs and Belts" what are product-attributes?
Please answer in JSON format. Provide more than 12 product-attributes. Give no examples per product-attribute. Every product-attribute must have a unit. Units must always be SI system units. The json format is: {"industry": "", "sub_industry: "", "product_group": "", "sub_product_group": "", "product_attributes": [{"attribute": "", "description", "unit": ""}]}