ACHIEVEMENT

CNPC Exportation Oil Tubular Project
CNOOC Domestic/ Overseas Oil Tubular Supervision Project
CNPC Domestic Oil Tubular Supervision Project
OCTG Procurement Project of Overseas Oil Company
OCTG Procurement Project of Overseas Vendor/ Trader

DOMESTIC MANUFACTURERS

Tianjin Pipe Group Corporation (TPCO)
Shanghai Baosteel Group Corporation
Pangang Group Chengdu Steel & Vandadium Co., Ltd
Anhui Tianda Oil Pipe Co., Ltd
                                                                                Hengyang Valin Steel Tube Co., Ltd
Jiangsu Chang Bao Steel Tube Limited Co., Ltd
Shandong Molong Petroleum Machinery Co., Ltd
Dalipal Pipe Company
Shanxi Fenglei Drilling Tools Co., Ltd
Tianhe Oil Group Huifeng Petroleum Equipment Co., Ltd

OVERSEAS MANUFACTURERS

Vallourec & Mannesmann Tubes (Germany & France)
Tenaris S.p.A.（Italie）
Sumitomo Metal Industries, Ltd (Japan)
VOLZHSKY Pipe Plant OJSC (Russia)
United States Steel Corporation (USA)
JFE Steel Corporation (Japan)
Voest-Alpine AG (Australia)
Welspun Corporation (India)