... machine: 1.Portable 2.Less weight,noise,maintance 3.Reasonal price 4.Manufacturer High frequency induction machine ... machine mainly used in metal tube welding,alloy cutter welding,carbide saw blade welding,diamond saw blade welding,core drill ... blades can not be welded with resistance welding5.Less electricityMetal welding ... The advantages:1.Induction heating speed ,high efficiency2.Energy saving and ...