CHS ERW Mild Steel Pipes 1. Outer Diameter:21.3 - 610 ... mm 3.Length:1-24m Product nameCHS ERW Mild Steel Pipes Out Diameter21.3mm-610mm, 1/2”-24”Wall ... gradeFirst class, prime, newly produced, secondary , stock etc.Material/Steel gradeA, B, X42, X46, X52, X56, X60, X65 ... SurfaceBare, varnished, black lacquer, Bitumen Coating, zinc coating, anti-corrosion coating, 3PE,FBE,Epoxy, Cement Mortar, as per ...