Aluminum alloy is composed of 99.5% pure aluminum, and tiny amounts of copper, manganese, magnesium and other elements for smelting. The density of aluminum alloy is lighter than steel, helping to reduce product weight and increase energy efficiency. Besides, The high strength and good fatigue resistance help to improve the service life of aluminum bar. Aluminum alloy also has excellent electrical and thermal conductivity, giving rise to better heat dissipation and energy transmission of the product. Moreover, aluminum bars are highly resistant to the corrosion of acid, alkali, salt and other corrosive media.