... and so on High-power ultrasonic metal melt treatment device Product function:High-power ultrasonic is used for treatment melt metal ... remarkable refinement metal grain, Uniform alloy composition, Accelerate the bubble motion. Significantly improve the metal material strength, hardness, ductility, ... .550°C-850°C steady work2.intelligent generator3.ultrasonic frequency:20KHz4.max. power:3000W High-power ...