The anodic oxide film of aluminum is porous and easy to adsorb dyes and colored substances, so it can be dyed to improve its decoration. After being closed by hot water, high temperature steam or nickel salt, the corrosion resistance and wear resistance of the oxide film can be further improved. In addition to aluminum, industrial surface anodized metals include magnesium alloys, copper and copper alloys, zinc and zinc alloys, steel, cadmium, tantalum, zirconium, etc.