（1） Suitable for welding carbon steel, stainless steel, pure copper and red copper, widely applicable to such industries and production enterprises as electric power construction, petrochemical industry construction, pressure vessel, shipbuilding etc.
（2） Adopting soft switch high frequency inverterue, high reliability, light in weight and energy saving
（3） Easy arc starting, stable welding arc and easy control of weld puddle
（4） High duty cycle and continuous welding in a long time
（5） Digital meter, exactly preset the welding current
（6） Adopting passive power factor correction, and high in power factor
（7） Arc force adjusts with the length of welding cable, which can achieve remote welding Two function of TIG AND MMA
（8） With function of striking time adjustment in TIG
（9） WS-630 with function of gouging