... steel pipe,ERP steel pipe,spiral steel pipe,square steel pipe,insulation steel pipe and so on.Item 3:Steel coil ,steel plate ,strip,sheetItem 4:Steel ... bar or rebar,wire rod.Item 5:welded pipe,square pipe,rectangular tubeItem 6:Galvanized steel ... pipe,galvanized coil ,plate ,strip,sheetItem 7:pipe fittingsDue ...