Certificate - Hunan Great Steel Pipe Co., Ltd.

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Nowadays, Hunan Great Steel Pipe Co.,Ltd has been granted a number of acceptance certificates issued by several domestic and international institutions. Such as:

ISO 2020-1

Quality Management System (ISO 9001)

20150804015747644764

Certificate Of Quality ( CIQ)

20150804015765306530

Societe Generale de Surveillance S.A. (SGS)

CE 证书