... with IGBT system 3, Compreheansive full load design 4, Elimination high voltage Technical Parameters: ModelGY-60AB (Three phase)work power340V- ... through forging press with the help of punch press, forging machine or other equipments, for instances, hot extrusion of watch case ... mold, mold accessory and inner hole of mold.C. Welding (braze welding, silver soldering and brazing)It mainly aims to melt the ...