prov:value
| - Note that the filler is not critical, but various types of pigments generally used for wood free paper, for example, kaolin, calcined kaolin, calcium carbonate, calcium sulfate, barium sulfate, titanium dioxide, talc, zinc oxide, alumina, magnesium carbonate, magnesium oxide, silica, white carbon, bentonite, zeolite, sericite, smectite, and other mineral pigments, polystyrene-based resins, urea-ba
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