... to use Usage:annealing,hardening,welding,forging High Frequency Induction Annealing Equipment for stainless steel Annealing•Heating and slow ... after the heating power6)Low power consumptionhigh-frequency device than the old-fashioned tube about 70 ... 600gear quenching Zhengzhou Gao Co.,Ltd specially produce high frequency induction annealing equipment ,high quality, good after-sale service . Choose ...