... .24hours continue working 4.220v,380v Super IGBT 220/380V two power welding machine 315DL Power can be used:single phase 220V, 1 ... no-load lose,easy to use, convenient to carry;2.high duty cycle:in the temperature 40,it can arrive to ... , 3C, ROHS, stable to use; each machine paseed the test like shaking, old age, high low voltage and temperature, dustproof.Technical parameter ...