... .heating speed faster 5.heating every inch igbt induction welding lathe tool welding equipment :welding coal mining tools, alloy drill bits, carbide saw ... copper parts, automotive steering gear, solar heat pipe, welding and cutting nozzles1Welding equipment:About frequency 15KHZ,can heating diameter 80 workpieces, can ... :25-100KHZ Size: 600 × 270 × 540mm high frequency induction welding equipment