Metal sheet

roof waterproofing

　Galvanized sheet introduction: 　　Galvanized sheet is put after annealing treatment of cold-rolled steel pickling, oxide on the surface of the clear, again after the volume of tank containing zinc chloride and ammonium chloride, and then into the molten zinc galvanizing, again after passivation, such as fuel post-processing stage of zinc coated steel sheet. 　　Galvanized sheet main use: 　　Galvanized sheet according to the purposes and can be divided into general use, roof, construction of the lateral, structure, corrugated board, stretching and deep drawing, etc.