... watch case, watch flan, handle, mold accessory, kitchen and table ware, art ware, standard part, fastener, ... mechanical part, bronze lock, rivet, steel pin and pin.2. Hot fitting refers to the connection ... melt the metal into liquid by using the high temperature, which is mainly applicable to the ... as small-size mold, mold accessory and inner hole of mold. IGBT high efficiency induction heating device