ASTM A653 Dx51d+Z Galvanized Steel Pipe 25*2mm 30*2.5mm Can Be Customized Galvanized Steel Pipe
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Product Description Product Description Zhengde Galvanized steel pipes are divided into cold-galvanized pipes and hot-dip galvanized pipes. According to the shape, they are divided into galvanized round pipes and galvanized square rectangular pipes. Both the substrate and the coating are combined. Hot-dip galvanizing is to pickle the steel pipe first. In order to remove the iron oxide on the surface of the steel pipe, after pickling, it is cleaned by ammonium chloride or zinc