... press with the help of punch press, forging machine or other equipments, for instances, hot extrusion of watch case, watch flan ... of steel and plastic tube, sealing of aluminum foil (tooth paste peel), motor rotor and sealing of tubular electric heating element.3. Smelting mainly ... Various electric tools, such as gear and axes.4. Quench for machine tools, such as lathe deck and guide rail.5. Quench ...