| http://www.w3.org/ns/prov#value | - Examples of powdery fillers include silicate such as carbon black, graphite, silica, quartz powders, glass beads, milled glass fibers, glass balloons, glass powders, calcium silicate, aluminum silicate, kaoline, talc, clay, diatom earth and wollastonite, metal oxide such as iron oxide, titanium oxide, zinc oxide, antinomy trioxide and alumina, metal carbonate such as calcium carbonate and magnesiu
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