... High Duty Cycle. Great Quality Cut-100 IGBT Air Plasma Cutter Feature: Worldwide cutting-edged IGBT Module and fast recovery ... Widely used on the plasma cutting of a variety of sheet materials such as carbon steel,stainless steel,aluminum,copper,etc ... Design\Development and Manufacture of Electrica Drill, Angele Grinder, Marble Cutter, Hammer Drill,\Circular Saw and 630A Following Arc Welding Machine ...