... TIG/MMA/CUT 3 in 1, easy to operate, portable, durable Technical data of plasma welding CT520About the products ... 100HZ) -High power factor V-MOS, reduce the voltage and rectifies current -Weight and volume ... efficiency is raised by over 30% -Working with TIG/MMA, output current is constant current -Working ... plasma ARC -CT312/416 is wildly used in welding and cutting steel, such as stainless steel, ...