... operation 5. usage:harden,weld,forge.anneal and melt High frequency,intermediate frquency,induction hardening furnace Main features :1, ... installation, easy to operate.2, High efficiency, energy saving is very clear, high-frequency devices than the traditional 60% saving3 ... 24 hours of continuous work.Advantages main applications: High frequency induction brazing machine has many advantages,such as, ...