Galvalume Steel Coil is a special steel material with aluminum-zinc alloy coated on the surface of steel plate. Its coating is composed of aluminum, zinc and a small amount of silicon. It has both the corrosion resistance of aluminum and the cathodic protection characteristics of zinc. It has better corrosion resistance and heat resistance than traditional galvanized steel plates. This material can not only remain stable for a long time in harsh environments, but also has good processability and surface aesthetics.