API Casing Pipe &J55/K55/N80/L80/P110/Btc/Ltc/Stc From China Manufacture Supplier
Tianjin Tiangang Special Petroleum Pipe Manufacture Co., Ltd.Steel Pipe or Steel Tube Carbon Steel for Building Construction
Tianjin Hengtongmingtai Trade Co., Ltd.API 5CT Casing Pipe with Coupling & Thread Protector
Tianjin Tiangang Special Petroleum Pipe Manufacture Co., Ltd.Vamtop/New Vam Thread Casing Pipe&Thread (BTC, STC, LTC) J55, K55, N80, L80, P110
Tianjin Tiangang Special Petroleum Pipe Manufacture Co., Ltd.Steel Tube/Steel Pipe (Square) Carbon Steel/Alloy for Building Construction
Tianjin Hengtongmingtai Trade Co., Ltd.