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

20150804015628252825
20150804015647054705

Quality Management System (ISO 9001)

20150804015747644764

Certificate Of Quality ( CIQ)

20150804015765306530

Societe Generale de Surveillance S.A. (SGS)

20150804015785238523

Bureav Veritas (BV)

20161214010857505750