JIS G3302 SGCD2 Galvanized Steel Sheets is to prevent the surface of the steel galvanizing plates from being corroded and prolong its service life, and the surface of the steel plate is coated with a layer of metal zinc. Hot-dip galvanized steel plates is a thin steel sheet in which a thin steel sheet is immersed in a molten zinc bath so that a layer of zinc is adhered to the surface. At present, it is mainly produced by continuous galvanizing process, that is, sheet galvanized steel is made by continuously immersing rolled steel plates in a plating tank in which zinc is melted.With the discovery of the industry, hot-dip galvanized sheet has been used in many fields. The advantage of hot-dip galvanized sheet is that it has a long anti-corrosion life and is widely adaptable to the environment. It has always been a popular anti-corrosion treatment method. It is widely used in marine components, building steel structure components, substation auxiliary facilities, light industry,…