The body includes {HEAD ~ a tapered side wall} having an inner face or surface and an outer face or {TAIL ~ surface} 
having
The body includes { HEAD ~ a tapered side wall } having an inner face or surface and an outer face or { TAIL ~ surface }
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL