Detailed Product Description spiral welded tube (1) Materials: Q235A,Q236,OCr13,1Cr17,00Cr19Ni11,Q345, ... X52,J55,K55 (4) Usage: oil and gas transmission, pipe, pier, Civil Engineering, building works etc. We also ... beamsSquare steelH-beamswireSpiral steelGB701-65ZBH4403-88GB4354-84ZBH44002-88Wire rodpipeSpiral welded pipeSeamless pipeGalvanizedpipeWelded pipeGB/T3091-1993ERW weldedCarbon steel pipeGB/ ...