Ordinary. Shanghai Zhongbaobao Jade Testing Center was established in 1993, and now it is affiliated to Shanghai Institute of Quality Management Science under Lingang Group. It is one of the earliest professional third-party jewelry and jade testing institutions with independent legal personality in China (Shanghai), which is very formal. He has successively won the honors of Shanghai Economic and Information System Trade Union Technician Innovation Studio and Shanghai Consumer Protection Committee Gold and Jewelry Professional Consultant Unit.