| http://www.w3.org/ns/prov#value | - Suitable materials include plastics, polymers, or composites such as polypropylene, polyethylene, polycarbonate, polyvinylchloride, polyurethane, tetrafluoroethylene (e.g., TEFLON7), polytetrafluoroethylene (a.k.a., PTEF), acetal resin (e.g., DELRIN7), chlorotrifluoroethylene (e.g., KEL-F7), acrylonitrile butadiene styrene, styrene butadiene, nylon, olefin, acrylic, polyester, moldable silicon, th
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