The symbol R plus a circle is a legally registered mark. Not all trademarks can be used. Only trademarks registered in accordance with the law can be used. Using this symbol for non-registered trademarks is an act of passing off a registered trademark. , must bear corresponding legal responsibilities. The use of this symbol is not mandatory. Users of registered trademarks can choose whether to put this registration mark on their trademarks. For relevant laws, please refer to: Article 37 of the "Regulations on the Implementation of the Trademark Law of the People's Republic of China" When using a registered trademark, a registered trademark or registered mark may be indicated on goods, product packaging, instructions or other attachments. Registration marks include (note plus ○) and (R plus ○). When using a registered mark, it should be marked on the upper right corner or lower right corner of the trademark.