... , better payment term, delivery in time. Corundum is aluminum oxide powder as raw material,In the electric arc furnace smelting ... than 99%.As compared with Brown Alumina Oxide abrasive, the toughness of White Alumina Oxide abrasive is slightly lower, but it has ... 40maxRefractoriness°C 1850minBulk densityg/cm33.50minMohs hardness---9.00min---α-Al2O3Grit(Abrasive grade)#F14, 24, 46, 100,180, 220We look ...