1.TIG welding, MMA welding 2.Pulse, square-wave, 2T/4T 3.IGBT, Digital, save 10 group parameter 4.Pass CCC, CE. Features: 1. ... are distinctively and plainly displayed on the digital screen which makes it set the welding parameters accurately. 3. It has a memory ... frequencyHz0.1-5000.1-5000.1-500Overall dimensionsmm565×245×420Weightkg252832 Digital IGBT inverter DC TIG welding machine 250A Pulse