Yet another feature of {TAIL ~ this noted service valve} has {HEAD ~ the valve stem} including an annular flange, an annular notch, and an annular valley 
Yet another feature of { TAIL ~ this noted service valve } has { HEAD ~ the valve stem } including an annular flange , an annular notch , and an annular valley
OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH