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