| http://www.w3.org/ns/prov#value | - Specific examples of particularly preferred inorganic fillers include oxides such as calcium oxide, magnesium oxide, barium oxide, aluminum oxide, boron oxide, titanium oxide and zirconium oxide; carbonates such as calcium carbonate, magnesium carbonate and barium carbonate; hydroxides such as magnesium hydroxide, calcium hydroxide and aluminum hydroxide; sulfates such as calcium sulfate, barium s
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