| http://www.w3.org/ns/prov#value | - Preferably, the materials are thermoplastic polymers such as, for example, polyolefins, e.g., polypropylene, high density polyethylene (HDPE) and the like; polyamides, e.g., nylon 6, nylon 12 and the like; and polyesters, e.g. polyethylene terephthalate (PET).
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