S275/S355/X52/X65/X70 Carbon Steel Dsaw/ LSAW Offshore Welded Pipe for Marine Construction
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Permanent Steel Manufacturing Co., Ltd.API 5dp E75 R780 N80 G105 S135 E75, X95 Drill Pipe
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Hunan Hengan Weiye Metal Products Co., Ltd.Cut/Roll-Grooving/Groove/Grooved Seamless/ERW Pipe for Backfill Mine Paste with Pipe Saddle
Permanent Steel Manufacturing Co., Ltd.Drill Steel Tube Stc Ltc Btc N80 J55 54.5 Lb/FT R1 R2 R3 Seamless Casing Oil Pipe
Permanent Steel Manufacturing Co., Ltd.API -5CT P110 Torque Ring Supplier with Setting Tools
Permanent Steel Manufacturing Co., Ltd.Grooved Victualic Coupling/Cut/Roll/Grooved/Ring Joint Steel ERW/Seamless Pipe
Permanent Steel Manufacturing Co., Ltd.API 5L/ASTM A106 Seamless Carbon Steel Pipe for Fluid Transportation
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TIANJIN BOER KING STEEL CO., LIMITED