{HEAD ~ The main function} of the invention is {TAIL ~ the mounting, positioning} and delivery of polymer to a fastener profile plate that is used to deliver an extruded fastener element to a cast film or sheet as the latter is being extruded 
is
{ HEAD ~ The main function } of the invention is { TAIL ~ the mounting , positioning } and delivery of polymer to a fastener profile plate that is used to deliver an extruded fastener element to a cast film or sheet as the latter is being extruded
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