The plug is specially designed for introduction of packing in the 360 degree fashion around the opening in which {HEAD ~ the plug} is employed to insure uniform distribution of the packing and to minimize {TAIL ~ channelling} or the like 
is employed to minimize
The plug is specially designed for introduction of packing in the 360 degree fashion around the opening in which { HEAD ~ the plug } is employed to insure uniform distribution of the packing and to minimize { TAIL ~ channelling } or the like
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL OTH OTH OTH OTH OTH OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH