| http://www.w3.org/ns/prov#value | - For example, the split ring 154 can be composed of any suitable material, such as an elastomer, a thermoplastic, an organic polymer thermoplastic, a polyetheretherketone (PEEK), a thermoplastic amorphous polymer, a polyamide-imide, TORLON??, a soft metal, cast iron, etc., and a combination thereof. (TORLON is a registered trademark of SOLVAY ADVANCED POLYMERS L.L.C.)
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