JIS G3302 SGCC Galvanized Steel Sheets Coil is a kind of hot-dip Galvanized Steel Sheets, and galvanized sheet refers to a steel sheet with a layer of zinc plated on the surface. Galvanizing is a frequently used economical and effective method of preventing rust, and about half of the world's zinc production is used in this process. Galvanizing steel plates 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. Th…