... technology 2.Hot start,arc force,overload protection MMA-200 machine 1. Advanced IGBT inverter technology, stable current, steady and intensive arc, high ... protection, over-current protection, under-voltage protection, suitable for TIG and MMA of various metals; 4.Stable arc, high welder speed, ... deep welding pool, good quality.factory:workshop:accessory: Automatic inverter MMA-200 welding machine