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Dongying Tianrui Petroleum Technology Co., Ltd.OCTG Seamless Tubing 3 1/2" 2 7/8" J55 N80 L80 P110 3cr Casing 20 Inch 30 Inch for Production Casing
Zhonghe Steel (Tianjin) Co., Ltd.Oilfield Equipment Polishing Cementing Tools Float Collar Float Shoe for Oil Well
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Tianjin Dongfanglong Petroleum Equipment Manufacture Co., Ltd.Drilling Anti-Rotation Auto-Filled Stab-in Cementing Tools Floating Shoe Float Collar
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Tianjin Dongfanglong Petroleum Equipment Manufacture Co., Ltd.API 5CT Tubing and Casing Coupling
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Goldenman Petroleum Equipment Co., LimitedAPI 5CT Tubing and Casing Coupling
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Tianjin Dongfanglong Petroleum Equipment Manufacture Co., Ltd.API 5CT Pup Joint 2-7/8 Nu EU K55 J55 L80 N80 for Oil Pipe
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Goldenman Petroleum Equipment Co., LimitedAPI 5CT Couplings for Threaded Tubing and Casing Pipes in Oilfield
Tianjin Dongfanglong Petroleum Equipment Manufacture Co., Ltd.API 5CT Casing Pup Joint 5-1/2 LC Sc Bc with Coupling
Tianjin Dongfanglong Petroleum Equipment Manufacture Co., Ltd.API 5CT Tubing Coupling Oilfield Downhole Tool
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Tianjin Dongfanglong Petroleum Equipment Manufacture Co., Ltd.Smls Tubing 73mm*7mm, N-80-1, N80-Q R2, R3 Eue, Psl-2 API 5CT
Union Steel Industry Co., Ltd.High Quality Drill Pipe Apl 9600mm 9200mm G105 Heavy Weight Drill Pipe for Oil Extraction Equipment
Union Steel Industry Co., Ltd.API 5CT Casing Tubing Oil Gas L80 Seamless Tube for Well Project
Union Steel Industry Co., Ltd.Oilfield L Construction Tubing Pipe OCTG Oil Well Service
Union Steel Industry Co., Ltd.