Alumina ceramic foam filter can effectively remove and absorb large or small?impurities in molten aluminum,improve the surface quality, product performance?and microstructure effectiveness. Mainly used in the domestic, construction,?electricity, condensing tubes, cable and other aluminum alloy precision casting.ceramic foam filter can effectively remove and absorb large or small?impurities in molten aluminum,improve the surface quality, product performance?and microstructure effectiveness. Mainly used in the domestic, construction,?electricity, condensing tubes, cable and other aluminum alloy precision casting. http://www.sefunm.com