| http://www.w3.org/ns/prov#value | - A plastic substrate is not particularly limited as far as it can be formed into a sheet or a film, and examples include a polyolefin film such as polyethylene, polypropylene, poly-1-butene, poly-4-methyl-1-pentene, ethylene.propylene copolymer, ethylene.1-butene copolymer, ethylene-vinyl acetate copolymer, ethylene.ethyl acrylate copolymer, and ethylene.vinyl alcohol copolymer, a polyester film su
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