... 8 - 22 mm 3.Length:1-24m Product nameCHS ERW Mild Steel Pipes Out Diameter21.3mm-610mm, 1/2”-24”Wall Thickness1 ... 2,etc.EndPlain end, beveled, cut square, grooved, threaded and coupling, etc.SurfaceBare, varnished, black lacquer, Bitumen Coating, zinc coating, anti ... ; can be packed as customers’ special requirementsApplication- line pipe for use in pipeline transportation systems in the petroleum and ...