Anodized aluminum or alloy to improve its hardness and wear resistance, up to 220 to 500 kg / mm, good heat resistance, hard-anodized film melting point up to 2300K, excellent insulation resistance, strike breakdown voltage up to 2000V, enhanced corrosion resistance, at ω = 0.03NaCl through thousands of hours of salt spray corrosion. Thin oxide film having a large number of pores, can be attached to a variety of lubricants. Aluminum surface after oxidation, appearance is very beautiful, and the dirt, once painted oil very easy to clean, assemble a product, depending on the load-bearing profiles with different specifications; environmentally friendly products, unlimited mobile, free to split range, can reuse; factory processing, no paint, no smell, no pollution, green products; whether it is dry or wet, no crack, no deformation.