Aluminum steel Bi-metal is one of the most versatile and representative metal composite materials. It is high strength, beautiful steel and light weight, processing formability, corrosion resistance and good thermal conductivity of aluminum as raw material, by hot dip galvanized or plasma activated rolling. Because of its excellent overall performance, it has been widely used in many fields such as machinery, chemical industry, medical equipment, special medical packaging, sports equipment, tableware, sanitary ware and home decoration materials