... technology 2.Wire Diameter:0.8/1.0 3.380V, Three Phase Professional Aluminium MIG/MAG Welding Machine MIG250F ... Steel, High Tensile Steel, Ordinary steel. Advanced Inverter Technology: Full bridge transformer power technology with high frequency about 20KHZ, greatly reduced ... Electronic Reactor) 2. Regulating function can be adjusted to full fill the specification such as making the arc more soft ...