... customers' need;5)Product Type: Square pipe, Rectangular tubes, ERW tubes, Seamless &Welded steel pipe, Galvanized steel pipe, etc. 6)Usage: Be widely used ... and construction Industry, traffic andcommunication, and so on. rectangular pipe galvanized Product namerectangular pipe galvanizedSpecification20mm*20mm-400m*400mmMaterial of Square PipeQ195, Q215,Q235 ...