... service 1.Technique parameter of kechuang medium frequency XZ-400B:1).0.15MPA≤water pressure≤0.3MPA 2).Input ... Perfect function of protect itself, such as over-voltage, over current, lack of water, phase fail, over hot, etc. ... function of protect itself. such as, over-voltage, over-current,lack of water, phase fail,etc.3)auto frequency tracking ... picture: New Type Bar Induction Forging Machine XZ-400B