| http://www.w3.org/ns/prov#value | - Nozzle 41 typically has associated therewith a flow controlling assembly 43 that can take the form of the illustrated stopcock or any other valve including remote activating valves such as solenoid valves, the opening of which permits passage of the polymeric membrane-forming composition through the nozzle 41 and onto the mandrel 33 or onto the partially formed composite graft wound thereon.
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