Corners connecting at one time is available with high efficiency production. Wide profile processing range due to convenient locating and clamping device setting.High processing accuracy due to super precision linear motion pair adopted in mobbing parts. Used for corner punching and riveting combination of aluminum window and door. TwoHydraulic system supplied large punching and riveting force.The double-foot brakes make it operate freely, and the reject lowered. So the efficiency and the precision are increased greatly. It can feed automatically and operate easily.