Legal analysis: Three products generally refer to products with no production date, no quality certificate, no manufacturer and unknown origin. Therefore, when shopping, we should not only choose large-scale businesses, but also choose branded businesses. Merchants with brands and trademarks can at least inquire about rights protection.

Legal basis: Article 27 of People's Republic of China (PRC) Product Quality Law must have Chinese factory name, Chinese address, telephone number, license number, product mark, production date, Chinese product description, limited qualitative or suggestive description when necessary, etc.