"Well vacuum annealing furnace is the standard energy saving industrial furnaces, major for various mechanical parts doing vacuum annealing heat treatment,Widely used in all kinds of metallic materials,alloy materials,crystal Materials to do stress relief annealing, bright annealing, vacuum degassing and so on. Through different configurations,can pass into the protective atmosphere for nitriding, carburizing heat treatment. Well type vacuum annealing furnace uses: http://www.hsfurnace.com/"