| http://www.w3.org/ns/prov#value | - Other materials for the skin layers include meltable film-forming substances used alone or in combination, such as polyethylene, polyethylene methyl acrylic acid, polyethylene ethyl acrylate, polyethylene methyl acrylate, acrylonitrile butadiene styrene polymer, polyethylene vinyl alcohol, nylon, polybutylene, polystyrene, polyurethane, polysulfone, polyvinylidene chloride, polypropylene, polycarb
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