... years 4) Professional manufacture Brown Fused Alumina for Glass Polishing Wheels 1. Description: ♦ Brown Fused Alumina is a product manufactured by gradual ... of TiO2, SiO2, Fe2O3, CaO and MgO.♦ Brown Fused Alumina is characterized by good toughness, high mechanical resistance and ... abrasive tools, and lapping and polishing processes.♦ Brown Fused Alumina is used as a raw material in the manufacture ...