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