{HEAD ~ One or more sections} of the plastic inner member are drawn down in dies to provide a large diameter section, a small diameter section and {TAIL ~ an intermediate transition section} 
{ HEAD ~ One or more sections } of the plastic inner member are drawn down in dies to provide a large diameter section , a small diameter section and { TAIL ~ an intermediate transition section }
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL