... automatic control of temperature, improve heating quality and simplify manual operation.With heating-insulating-cooling three stages function setting, ... , hot extrusion of watch case, watch flan, handle, mold accessory, kitchen and table ware, art ware, standard part, fastener, ... for hardware molds, such as small size mold, mold accessory and inner hole of mold Annealing (tempering and modulation): ...