Available for sale. It is not illegal to sell products without a trademark. Products without a registered trademark are naturally legal as long as they meet the quality standards stipulated by the relevant country for the product. Although not all goods require a registered trademark, a registered trademark can bring actual legal protection. . Legal basis: "Trademark Law of the People's Republic of China" Article 4 If a natural person, legal person or other organization needs to obtain the exclusive right to use a trademark for its goods or services during production and business activities, it shall apply to the Trademark Office for trademark registration. Bad-faith trademark registration applications that are not intended for use shall be rejected. The provisions of this Law regarding commodity trademarks shall apply to service trademarks. Article 6 Goods that require the use of registered trademarks under laws and administrative regulations must apply for trademark registration. Products without approval of registration may not be sold in the market.