... and crystallized under high termperature form of materials Brown Corundum,fuesd alunmina Brown Fused Alumina is bauxite, carbon ... and hard bronze etc. grinding. In addition, in refractory materials, chemical additives, precision casting and anti-slip material ... , sealing ring mold. (3) corundum insulating materials, such as lightweight corundum brick, corundum hollow ball and fiber products, widely ...