Alloy Pipe,Pipe for chemical fertilizer facility ,Marine Pipe,Casing Pipe,Drill Pipe,Oil Pipe,Structure Pipe ,Pipe of Pipelines Code NO. ... /T53128Hydraulic prop Tube20,35,45,27SiMnGB/T173969American Standard PipeA,BASTM A106 ASTM A5310Casing and TubingJ55 ... pipe, high pressure boiler pipe, alloy pipe, marine pipe, hollow sucker rod, oil cracking tube, tubing, American standard tube, European standard ...