1. As long as you have the word "wine" on your business license, you can register the trademark on alcoholic products. It doesn't matter whether you buy liquor or produce liquor.

2. If the same trademark has been registered on beer, it will not affect the application for trademark registration of liquor, because beer belongs to 32 kinds of non-alcoholic beverages and liquor belongs to 33 kinds of alcoholic beverages. Neither of them belongs to similar commodity projects. Unless the registered trademark on beer is a well-known trademark, there are exceptions.

If someone has registered before, but it has expired, then you can register.