High Temperature Resistance Brown Fused Aluminum Oxide Grit 3-5MM For Continous Casting Refractory Description: Refractory Brick Materials 0-1mm Brown Fused Aluminum Oxide BFA 98% High Temperature Resistance .RS Brown fused alumina 98% is made by a special technique in electric arc furnaces with high temperature above 2300°C and refining with longer time. RS Brown fused alumina 98% is the ideal product which can substitute white fused alumina, compact fused alumina and tabular alumina in China . RS Brown fused alumina 98% sand (Barmac production powder (acid washing) produced by Rui Shi plant is characterized by without bursting, without pulverising and high bulk density, good flow property etc,