... , fan-cool, suitable for continuous use;3. Steady and intensive arc, excellent arc striking performance;4. Thermostatic protection, over-voltage protection, over ... -compressives strength,strongly resistance to shock loading,nondeformable.TIG200ADC:welding machine/high frequency welder/electric welding machine IGBT AC/DC inverter TIG (GTAW)Welding Machine(CE approval, TIG200ADC)