Kule mihla, iHunan Great Steel Pipe Co., Ltd inikwe inani lezatifikethi zokwamkelwa ezikhutshwe ngamaziko aliqela asekhaya nawamanye amazwe.Njenge:
Inkqubo yoLawulo loMgangatho (ISO 9001)
Isatifikethi soMgangatho (CIQ)
I-Societe Generale de Surveillance SA (SGS)
