IGBT high frequency / intermediate frequency induction heating equipment Apply to: 1, the field of hot forging. Hand tools, hardware tools before forging heating. Hot upsetting 2, high strength bolts and nuts. Thermal bending of U type bolt. 3, heating oil drill pipe upsetting, hot assembly of automobile front axle, rear axle General parts and all kinds of hot forging 4, automobile and motorcycle parts to the hot forging.