电子管阳极、烧结模 Electronic tube anodes、sintering moulds 单晶炉用加热器、隔热屏、坩埚、舟皿 Heaters,heat shields,crucibles for monocrysalline silicon furnaces 电火花加工、压铸膜、金属涂镀 Electrical discharge maching graphite,die castingmoulds,coatingfor metal 金刚石烧结模 Diamond sinter moulds 连续浇铸用结晶器 Moulds for continuous casting |