Induction Heater, Solid State Hf Welder, High Frequency Welding Machine manufacturer / supplier in China, offering High Efficiency Solid-State Hf Welder for ERW Tube Manufacturing 200kw, High Efficiency Solid-State Hf Welder for ERW Tube Manufacturing 100kw, Solid-State High Frequency Welder for ERW Tube Mill with CE Certificate 1800kw and so on.