One kind of copper aluminum replace part of the new composite materials, compared with the traditional copper material, copper consumption per ton savings above 50%, and the price is also reduced by 40 percent. According to experts aluminum composite material can be processed into copper according to market demand Cu-al clad plate, aluminum composite bats, aluminum composite block, Cu-al clad sheet, aluminum composite conductive column, aluminum composite conductive terminals, copper and aluminum composite line cards and other products, widely used in conducting industry. Eg, Cu-al clad plate can be widely used in high and low voltage distribution cabinet, cell, trolley line, auto parts, chemical equipment, and many other aspects.