Profile: Hebei Ningxin Cast Material Co., Ltd. offers ceramic foam filters and high silica fiberglass meshes. Our alumina ceramic foam filter can remove the micron-sized inclusions in molten aluminum. It has chemical stability and mechanical strength. Our zirconia ceramic foam filter can remove all kinds of inclusions, including micron-sized inclusions, and trapped gas. It has high temperature resistance, chemical stability, and flush resistant characteristics. Our filter is mainly used for the filtration of molten steel, stainless steel, iron, copper and alumina. It is used in the precision casting process in aviation industry.