1) Passed ISO 9001:2000; 2) Competitive prices; 3) Excellent performance alumina; 4) Ideal refractory . ... ) We provide high purity calcined alumina,used in a wide range of refractory applications,such as,fired shapes,iron,and steel ... .040.023.95961~2 2011 HOT calcined alumina(ISO 9001:2000)