The method comprises the steps of shaping {HEAD ~ the distal tip} of {TAIL ~ the tube} by providing a shaping means for shaping the closed, rounded end of the tube 
of
The method comprises the steps of shaping { HEAD ~ the distal tip } of { TAIL ~ the tube } by providing a shaping means for shaping the closed , rounded end of the tube
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH