I claim, the ornamental design for a link packing installed between track bush and bottom of link counter hole for road-rail vehicle, as shown and described.
FIG. 1 is a perspective view of a link packing installed between track bush and bottom of link counter hole for road-rail vehicle, showing my new design;
FIG. 2 is a front elevational view thereof, the rear, left side, and right side elevational views being identical;