Very formal. China Inspection (Guangzhou) Gold and Silver Jewelry Quality Inspection Center Donghai Center is a branch of a sole proprietorship enterprise. The company was established on 20 19. It is a formal company protected by the official website Certification Law, so it is formal. The company is mainly engaged in precious metal testing services. Jewelry appraisal service; Appraisal and consulting services of art (beauty) products and collectibles; Information technology consulting services; Cultural and artistic consulting services; Product certification, etc.