Masiku ano, Hunan Great Steel Pipe Co., Ltd yapatsidwa ziphaso zingapo zovomerezeka zoperekedwa ndi mabungwe angapo apakhomo ndi akunja. Monga:


Quality Management System (ISO 9001)

Satifiketi Yaubwino (CIQ)

Malingaliro a kampani Société Generale de Surveillance S.A.
