In these preferred embodiments, {HEAD ~ the locator pins} are integrally formed as {TAIL ~ part} of the inner core 
are integrally formed as
In these preferred embodiments , { HEAD ~ the locator pins } are integrally formed as { TAIL ~ part } of the inner core
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH