This is difficult to define.

If the "bald head" registered by others has not been successful and is still being applied for, there is definitely no problem with your use in this way and it is not considered infringement;

If the "bald head" registered by others has been If you are successful and continue to use it like this, although you have avoided the registration mark "R", if the products you sell are exactly the same, you will be suspected of counterfeiting other people's products. If they don't pursue the case, it won't be a big problem. Once the other party defends their rights and pursues the case, they will probably still have to bear some responsibility.