prov:value
| - Any of the composition, thickness, and other characteristics of the second skin layer may be substantially the same as any of those of the first skin layer, or may differ from any of those of the first skin layer.The first and/or second skin layers may each have a thickness of at least about, and/or at most about, any of the following: 0.05, 0.1, 0.15, 0.2, 0.25, 0.5, 1, 2, 3, 4, and 5 mils.
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