| http://www.w3.org/ns/prov#value | - The coatings 4, 5 may have a thickness of the order of 10 to 100 microns (1 to 10.10-5 m) and be made from a synthetic material such as a polyester, a polypropylene, a polyethylene, a polybutylene, a polyamide, an ethyleneacrylic acid copolymer, an ionomer resin, etc.
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