Zhongwei quality inspection has passed the qualification certification of national product quality supervision and inspection institutions (metrological certification) and the third-party testing institutions recognized by ISO/IEC 17025 laboratories. It is a professional organization for the detection of jewelry, jade and precious metal jewelry in China, and a jewelry detection and appraisal institution with independent legal personality.

China's quality inspection technology has been strictly examined by the national quality and technical supervision department in accordance with the national "Laboratory Qualification Accreditation Criteria", and has been certified by its qualifications, and has obtained the metrological certification certificate, which can provide the authoritative testing and appraisal institution with certified data and results to the society.

According to the inspection experience, the quality inspection of Zhongwei is mostly the license issuing agency of online shopping products, which is qualified, but it is not as high as the domestic quality inspection technology.

At present, there is no bad feedback on the quality inspection technology and quality inspection in China and Uygur.

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I hope the answer can help you.