... ASTM-A53,BS1387-85,JIS-G3444 FBE Coating Carbon Steel Spiral Pipe:1)welded square pipe2)SIZE:21.3--1250mm 3)Thickness:1 ... A53,BS1387-85,JIS-G3444,GB/T3091-2001,etc. Commoditycarbon steel pipeSpecification21.3-457.2mm, 1.8-14.27mmMaterialQ195,Q215,Q345 ... can do special oeders as your requestprovide other steel pipe: cold rolled,hot rolled,hot dipped,ERW pipe,etc.We sincerely hope to establish long-term ...