the first-class category is a general term, the second-class category is subdivided on the basis of the first-class, and the third-class category is subdivided on the basis of the second-class, such as hardware-locks-mechanical door locks.

AliExpress covers 3C, clothing, home, accessories and so on ***3 first-class industry categories; Among them, the dominant industries are: clothing, mobile phone communication, shoes and bags, beauty and health, jewelry and watches, consumer electronics, computer networks, home, automobile and motorcycle accessories, lamps and so on. Many products that are allowed to be sold in China will be banned from being sold on the AliExpress platform, such as diet pills. Therefore, AliExpress sellers need to fully understand before opening a store.