{HEAD ~ The plug} is specially designed for 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 
{ HEAD ~ The plug } is specially designed for 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
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH 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