Haha, you can take a look, different products have different mandatory standards. Take clothing as an example: there is the national standard GB 5296.4-1998 "Instructions for Use of Consumer Products, Instructions for Use of Textiles and Clothing"; GB 18401-2010 "National Basic Safety Technical Specifications for Textile Products" national standard

This is mandatory , if it is clothing and textiles, they must meet the requirements of the above two standards before they can be circulated in the market.