1.motor driving(220V),twin-stage 2.All aluminum shell,cooling sex strong,light weight 3.OEM offered KLW2000 Series Special pump for hydraulic wrenchlElectrical, double electrode, built-in bypass circuitlFull aluminum shell, high cooling ability,light body.lAdjustable relief valve set the torque preciselylSecurity control button, remote control by person in long distance. Order#ModelPressure ...