This product is made of high quality artificial grate by mechanical processing. It is mainly used in all kinds of vacuum resistance furnace, carbon tube furnace, induction furnace, sintering furnace, brazing furnace, ion nitriding furnace, tantalum niobium smelting furnace, vacuum quenching furnace and so on, of which need grate plate, grate boat, grate heater, grate heating tube, conductive rod, grate hearth plate, grate bolt, nut, grate bracket, grate mould.