Brown Aluminum Oxide is fused bauxite in an tilting arc furnace or fixed furnace by high temperature. It shows brown color and its main chemical composition is AL2O3.95% min. After crusher,,sieve to different grain size, water cleaning or wind cleaning.,then used for different application,it is called teeth of industry .It has suitable for grinding ,polishing, bonded abrasives, coated abrasive. In refractory industry,it can used for lining mixture,pouring materials,castable and refractory brick.