... performance 3.less oxide layer usage:forging,hardening,welding,annealing Intermediate frequency induction forging machine for diamter 40mm round rod IGBT ... mm): Host: 1000*650*1200Transformer : 1050*650*8007)Perfect function of protect itself, such as over-voltage, over current, lack ... , etc.8)Digital auto-control, it has the function of manual, automatic and heating-keeping-water cooling to control.9 ...