The absence of a trademark does not mean that there is a problem with the quality of the product. The "Law of the People's Republic of China and Domestic Product Quality" stipulates that the Chinese factory name, Chinese factory address, phone number, license number, product logo, and production date must be included , Chinese product instructions, and if necessary, qualitative or suggestive instructions, etc., anything missing will be regarded as a substandard product. Any product that lacks one of the above requirements can be regarded as a "three-no product", so the absence of a trademark does not count as a three-no product.