The method may also include the step of incorporating {HEAD ~ a quantity} of {TAIL ~ rollable molded reinforcing elements} in the mold with said first and second thermoplastics materials, wherein the reinforcing elements are located in a spaced array thereby forming bridges between opposed inner skin surfaces as they expand 
The method may also include the step of incorporating { HEAD ~ a quantity } of { TAIL ~ rollable molded reinforcing elements } in the mold with said first and second thermoplastics materials , wherein the reinforcing elements are located in a spaced array thereby forming bridges between opposed inner skin surfaces as they expand
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH