Fused alumina 1.ISO 9001:2000,China Top ten best qualified assured brand 2..Factory was founded at 1961 Low-carbon high-Al fused aluminaFeatures & Specification:Low-carbon high-Al fused alumina:is reliable refractory material,treated by special process to further reduce the residual carbon and impurities of high-Al fused alumina, not powdering, not crack and not burst in application in producing ...