... water failure, phase failure and unfit lad and so on, machine can be protected from destroys and machines can be repaired easily ... improve the repeatability. Applications:1, diamond tools, carbide cutting tools welding.2, metal steel - steel, steel - copper, copper - ... dissimilar metals in the high-frequency welding.3, metal quenching, annealing, quenching, tempering and heat treatment.4, metal forging, ...