Galvanized coil is a thin steel plate that is immersed in a molten zinc bath to adhere a layer of zinc on its surface, with good adhesion and weld ability of the coating. The production process of galvanized coils mainly involves continuous galvanizing, including hot-dip galvanizing and the production of alloyed galvanized steel sheets. Galvanized coils have a wide range of applications, including construction, automotive, industrial, home appliances, food, agriculture, and other fields