| http://www.w3.org/ns/prov#value | - Suitably, for a speckled finish, in each component at least 90% by volume of the particles are <50 ??m and more than 10% by volume of the particles are ???20 ??m and the mean particle size is in the range of from 15 to 35 ??m, more especially 20 to 30 ??m, for example substantially 25 ??m.
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