| http://www.w3.org/ns/prov#value | - aldehyde group such as polyacetal, resins having a sulfone group such as polysulfone, other resins such as liquid crystal polymers and compounds thereof, metals highly resistant to ink such a gold, tungsten, tantalum, nickel, stainless steel, titanium and alloys thereof, materials coated with these metals as for resistance to ink, resins having a amide group such as polyamide, resins having an ald
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