... swich. apply PWM control technonlgy ,outstanding constant current Secope of Appllcation and Characteristicshigh power utilization ,low ... medicalcare,hardware,environmental protection and decoration ect.wthimanual arc welding function ,it can povide compelete welding with ... 200TIG:250TIG:315Rated duty cycle35Mode of Arc Generating High FrequencyWeight91088112325 ws series inverter DC argon arc welder