... ,high speed 2.simple operation,smooth cutting surface DC plasma cutting machine♥ Provide arc stronger,more focused,more stable ♥ ... in cutting speed compare with flame cutter♥ thick metal plate can be cut easily and quickly♥ HF untouched arc ... -starting cutting(70, 100, 120)♥ HF touched arc-starting cutting (30, 40, 60) Dc inverter plasma cutting machine cut ...