Because of the outstanding deep drawability and aging resistance, this series of products are widely used for producing the automobile panels (e.g. outer panel of roof, left and right side-frame outer panels), automobile internal panels or reinforcements (e.g. inner panel for left and right rear wheel housing, trunk lid internal panel, left and right side-frame reinforcements, dash board mounting) and outer panels, inner panels and mountings of air conditioners and refrigerators.