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All our suppliers need to provide relevant qualification certification materials of the company and the trademark registration certificate or valid brand authorization certification documents of the brand products sold. We will strictly review the registration materials.Suppliers entering us must provide corresponding brand authorization documents or complete brand authorization links to protect the rights and interests of right holders and consumers from infringement.We invest millions of special sampling inspection funds every year, set up a sampling inspection mechanism for mysterious visitors to control the quality of platform products, and cooperate with the national authoritative third-party quality inspection agency. For unqualified products, we will conduct inspections based on rules The supplier imposes penalties.