Elevations 58 which are circular in cross section can be seen at {HEAD ~ the upper side} of {TAIL ~ the support member} 20 
Elevations 58 which are circular in cross section can be seen at { HEAD ~ the upper side } of { TAIL ~ the support member } 20
OTH OTH OTH 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