| http://www.w3.org/ns/prov#value | - Examples of the filler may include: a carbon material such as carbon powder, carbon fiber and acetylene black; powder or flake of a metal such as aluminum, copper and stainless steel; a powder or flake of a conducting metal compound such as indium oxide and titanium oxide; a powder or flake of a noble metal such as gold, platinum, rhodium and palladium; and a powder or flake of a base metal such a
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