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