| http://www.w3.org/ns/prov#value | - The invention is further directed to lining the mold with a release liner of such nature as to provide an easily removable film covering the mold walls, the film being a suitable strong, flexible plastic other than any skin which may be formed at the surface of the foam, and such as to adhere to the molded plastic to the extent desired, which is easily inserted into the mold, which has definite sh
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