| http://www.w3.org/ns/prov#value | - In one embodiment, the top coating is a low-friction or release coating or material, such as fluorinated materials, polytetrafluoroethylene, perfluoro-alkoxy, fluoroethylenepropylene, MFA, polyethylene, silicone, ceramic composites, paralyene silane polymers and other suitable low-friction coatings.
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