To obtain a tight seal of {HEAD ~ the hood} on {TAIL ~ the sabot} by simple measures, particularly without a thread, the shell of the hood is designed with a sealing rim applying against a smooth annular zone of the sabot 
on
To obtain a tight seal of { HEAD ~ the hood } on { TAIL ~ the sabot } by simple measures , particularly without a thread , the shell of the hood is designed with a sealing rim applying against a smooth annular zone of the sabot
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH