1.W.T: 0.5-12mm 2.O.D:21.3-273.1mm 3.used inconstruction,gas,oil,e BS1387 galvanized steel pipe ProductGalvanized Steel TubeSize andOutside Diameter:Wall Thickness: 21.3-219.1mm1.57-6.0mmTolerance+/1%+/-8%Length3.00-12.00M or according to the client’s requirementBrand NameRenTongMaterialHot Rolled Carbon Steel,Q195,Q215,Q235,A53,St37,BS1387.StandardASTM/ BS/ GBSurfaceGalvanized,Zin 300 to 400 g/ ...