The 25th category is product trademarks, which are mainly used on clothes, shoes and hats. The 35th category is service marks, which are mainly used in services such as advertising and promoting others. If you make your own brand and then sell it, you will generally register both categories. If you just open a clothing store to sell clothes of other brands, you will register more in category 35, but if you think you will make your own brand in the future, you can also consider registering 25 products.