Brown corundum

         Corundum is bauxite, coke (anthracite) as main raw materials, in an arc furnace smelting, use it made of abrasive, suitable for grinding high tensile metal, such as a variety of common steel , malleable iron and hard bronze, etc., can also create advanced refractories. Product has high purity, good crystalline liquidity, low coefficient of linear expansion, corrosion-resistant characteristics.