Hot dip galvanized steel pipe is the molten metal and the reaction of the iron matrix alloy layer, so that both the substrate and the coating combination. Hot-dip galvanizing is the first pickling of the steel pipe, in order to remove iron oxide on the surface of the steel pipe, pickling, washing with ammonium chloride or zinc chloride aqueous solution or ammonium chloride and zinc chloride mixed aqueous solution tank, and then feeding Hot dipping products are various like Galvanized Metal Planks，Galvanized Steel Scaffold Planks. Hot dip galvanized coating with uniform, strong adhesion, long life and other advantages. The steel substrate undergoes complex physical and chemical reactions with the molten plating bath to form a corrosion-resistant and compact zinc-iron alloy layer. Alloy layer and pure zinc layer, steel substrate integration. Therefore, its strong corrosion resistance.
