| http://www.w3.org/ns/prov#value | - Specific examples of metallic inorganic materials may be selected, for example, from metals (e.g., metals such as gold, niobium, platinum, palladium, iridium, osmium, rhodium, titanium, tantalum, tungsten, ruthenium, iron, zinc and magnesium), metal alloys comprising iron and chromium (e.g., stainless steels, including platinum-enriched radiopaque stainless steel), alloys comprising nickel and tit
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