| http://www.w3.org/ns/prov#value | - FIG. 12c is a broken away cross-sectional side view of the individual heating element and polypropylene substrate shown in FIG. 12a during the dwell period where the individual heating element is at a predetermined depth within the polypropylene substrate, illustating in particular the formation of a raised quantity of softened polypropylene about the individual heating element.
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