1.without oxide layer 2.fast speed, high efficient ... stretch, elbow, iron wire, steel wire heating make pin, stainless steel products annealing, stretch, expanding.3.Heat ... of axis, cam wheel, chain wheel, gear wheel, valve, ball pin , Etc. and hardening of large size machine tool ... IF5,Metal meltingSpecialized in melting gold and silver.Specification:Model: WH-VI-160 Output power: 160KW Input voltage: ...