Brief Introduction: Galvanized sheet is hard cold rolled steel sheet pickled after annealing treatment to remove surface oxides, and then through a solvent bath containing zinc chloride and ammonium chloride, and then into the molten zinc tank galvanized, then passivated, The post-processing stage of the coated oil generated a steel sheet coated with zinc. The galvanized plate surface structure is divided into: The normal spangle (Z), small spangle (X), finishing zinc flower (GZ). According to production and processing methods,it can be divided into : 1,A hot-dip galvanized steel sheet 2 Electricity galvanized manufacturing 3 Sided plated and sided difference galvanized steel. 4 Alloy, composite galvanized steel sheet. Performance and main application: Galvanized steel surface zinc crystals of scaly or leaf-shaped pattern, a solid galvanized layer, excellent corrosion resistance and good weldability and cold forming properties.Galvanized steel sheet uses can be divided into general use, roof, building lateral plate structure with corrugated board, stretching with deep drawing.