(3) can be used for pure gold welding, cobalt-chromium alloy welding, pure gold and cobalt-chromium alloy welding, pure titanium welding, as well as orthodontic. (4) products with small size, safe and stable, easy to operate, maintenance-free features. Input voltage / frequency: 110V/220V / 50HZ Welding voltage: 40V.Input power: 100W Welding current: 50A-600A. Protection class: IP21 Maximum welding frequency: 1HZ. Supply pressure: = 0.1MPa maximum argon consumption 5L / min. Size: no packaging 30cm 13.5cm 23.5cm. After packaging 41cm 30.5cm 26cm.