| http://www.w3.org/ns/prov#value | - Examples of suitable embossable thin flexible film master materials, such as preferred plastic polyolefins of polypropylene and polyurethane and the polyester films, were noted above; but there are other plastics and other materials, such as polyethylene, that though physically not readily directly engravable or embossable to serve as an embossing film master, can be adapted for such purpose.
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