... years 4) Passed ISO 9001:2000 Brown Fused Alumina Oxide for Bonded Abrasives 1. Description: ♦ Brown Fused Alumina is a product manufactured by gradual ... amounts of TiO2, SiO2, Fe2O3, CaO and MgO.♦ Brown Fused Alumina is characterized by good toughness, high mechanical resistance and ... ground♦ Producing mold of precision casting 3. Grit Size Available (F):F series: F4, F8, F10, F12, F14, F16, F22, F24 ...