... soild steel and wood, light steel and other sheet metal, welding area 3.welding material: inverter frequency up to 100 KHz, the ... good weld. (2)high stability power supply wire, smooth wire (3)weld pool depth and good resistance to thermal crack resistance ... , high stability; (3)after vibration, aging, high and low voltage, high temperature, high humidity, dust and other detection experiments 7.complete ...