The properties of hot-dip galvanized steel are tough coating, completed protection, less maintenance and long life. It is specified for optimum corrosion protection and enhanced aesthetic appeal. Typical residential uses for galvanized steel include doors, window hoods, gutters, downspouts, etc.

The Galvalume Steel sheet in coil uses the cold-rolled steel sheet as a substrate and solidified by 55% aluminum, 43.4% zinc and 1.6% silicon at 600 °C. It combines the physical protection and high durability of aluminum and the electrochemical protection of zinc.

The properties of Pre-painted steel sheets are tough coating, completed protection, low maintenance and long life.Application of coating can protect the surface of steel from oxidation and it can also enhance requirements for visual appearance.