The substrate as the anode, placed in the electrolyte for electrolysis, artificially formed a layer of protective oxide film on the surface of the substrate to form an aluminum oxide.

Main characteristics of aluminum oxide:

1, has a strong wear resistance, weather resistance, corrosion resistance.

2, you can form a variety of colors on the surface of the substrate, to maximize the suitable for your requirements.

3, strong hardness, suitable for all kinds of construction, the production of industrial materials.