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Whitefused aluminais white and harder and more brittle than Brown Fused Alumina Micropowder. 1.It features strong cutting force, steady chemical property and excellent insulation. Its knoop's hardness is 2200-2300kg/mm2. It can be used for making bonded and coated abrasive tools, wet or dry blasting. It is suitable for grinding of the hard and strong bending strength materials, such as chilled steel, alloy steel, high-speed and high carbon steel and suitable for crystal, cutting semiconductor and monocrystalline and polycrystalline. Meanwhile, it can be used as insulation, special ceramics and super refractory materials, etc. 2.Products are classified chemical washed, non-washed, shaped, non-shaped, normal bulk density and high bulk density. All products will be supplied according to customer's different requirements. 3.AVAILABLE GRITS F24,F30,F36,F46,F60,F70,F80,F100,F120,F150,F180,F220,F240,F320,F1000 JIS240,JIS280,JIS320,JIS360,JIS400,JIS500,JIS600,JIS700,JIS800,JIS1000,JIS1200 0-1mm,1-3mm,3-5mm,5-8mm, Other specification according to client' requirement.4.Brown Fused Alumina is brown and features toughness and impact strength. It can bear high pressure. Its knoop hardness is 1800-2200kg/mm2. It`s suitable for making bonded and coated abrasive tools, wet or dry blasting, super precision grinding and polishing, making high quality refractory materials, grinding carbon steel, alloy, malleable cast iron, hard bronze and semi-conductor materials. 5.Use: For coated abrasives-JIS/P standard, for vitrified tools-FEPA standard, for resin bonded wheels-FEPA standard, for blasting, lapping, polishing_FEPA standard. 6.AVAILABLE GRITS: F16, F24, F30, F36, F46, F60, F70, F80, F90, F100, F120, F150, F180, F220, F240, F280 W63, W50, W40, W28, W20, W14, W10, W7, W5 0-1mm,1-3mm,3-5mm,5-8mm,3x6mesh, 6x14mesh, 14x70mesh, 4x10mesh,30x100mesh Other specification according to client' requirement.