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