... Welded steel pipe, Galvanized steel pipe, etc. 6)Usage: Be widely used in furniture, building and construction Industry, traffic andcommunication, and so on. rectangular pipe ... galvanized Product namerectangular pipe galvanizedSpecification20mm*20mm-400m*400mmMaterial of ... provide all kinds of pipe: cold rolled, hot rolled, hot dipped, ERW pipe and so on. ...