| http://www.w3.org/ns/prov#value | - This ensures optimum use of the abrasive grain. ??? Fused aluminium oxide: 99.5 % Al2O3 - in grain types EK1 - EK9??? EB or EX microcrystalline sintered aluminium oxide in grain types IB0 - EB9Silicon carbideSilicon carbide is harder, more brittle and sharper edged than aluminium oxide and is predominantly used for hard and brittle materials, such as grey cast iron, carbide and non-ferrous metals.
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