The method 1, wherein attaching the truncated cone to {TAIL ~ the pipe} further comprising inserting {HEAD ~ the truncated cone} into the pipe 
The method 1 , wherein attaching the truncated cone to { TAIL ~ the pipe } further comprising inserting { HEAD ~ the truncated cone } into the pipe
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH