What are trademark classes?
The China trademark search stem divides all goods and services into 45 trademark classes — 34 for goods and 11 for services. There are many goods or services that fall into each class, and they're not always obvious from the class name. When you file your trademark application, you must select the class of goods or services that your trademark will protect, and you must also identify the goods or services you provide. Your trademark will only protect the goods, services and class that you name in your application.