... . It is specially suitable for great mobility places and headroom works. With 60% loading rate, it is able to work permanently. What ... , it has well constant-current feature and input current control, which makes all the data accurate and the welding machine reliable ... to weld the equipments of ships, cars, bridges and steel works. TypeYW7 600YW7 600AYW7 600BYW7 600CPower input voltage(V)Single-phase ...