... 2.CCC,CE certificate 3.high duty cycle New DC inverter arc welding machines-MMA-200 1. ... Width Modulator, closed loop control system to ensure the machine is stable4.Excellent welding performance: little spatter, arc ... CE, 3C, ROHS, stable to use; each machine paseed the test like shaking, old age, high ... :49.5x26x33.5CMHS CODE: 8515800090Factory picture: New DC inverter arc welding machines-MMA-200