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Best quality brown fused aluminium oxide at low price, please contact us for more information. Brown Fused Alumina is fused and crystalized under high temperature from a mixture of bauxite and otherraw ***** is characterized by its high hardness, good toughness and sharp shape in size.Abrasives tools made of it are suitable for grinding metals of high-tensile strength such as carbon steel, general-purpose alloy steel, annealed malleable iron and hard braze, ***** also can be used as refractory materials