In May 2021, the company passed the on-site audit by Meng Zhaojun and Feng Guoping, two auditors and teachers from Shanghai Quality System Audit Center, and the certificate was retained until September 19, 2023.
In May 2021, the company passed the on-site audit by Meng Zhaojun and Feng Guoping, two auditors and teachers from Shanghai Quality System Audit Center, and the certificate was retained until September 19, 2023.
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