... 4.advanced soft switch 5.ISO9001,UKAS,CCC,CE WSEM series of digital controlled IGBT inverter (square wave) DC/AC ... panel, and increases the reliability of products. 3.The human-computer interface makes the process of parameters adjustment simple and covenient, and ... , and enhancing production efficiency. 6.With excellent weld shape, this series are the ideal type for aluminum welding. 7.Using foot ...