Galvanized steel sheet is a type of steel sheet that has been coated with a layer of hot-dip galvanization or electro-galvanization on its surface. Features of galvanized steel: Galvanized can effectively prevent steel corrosion and prolong service life. Galvanized steel sheet (thickness is 0.4~1.2mm) is also called galvanized iron sheet, commonly known as white iron sheet. Galvanized steel sheet is widely used in construction, vehicles, household appliances, daily necessities and other industries.