The ornamental design for combined cap and end plug structure for extrusion tubes and the like, as shown and described.
FIG. 1 is a top front perspective view of a combined cap end plug structure
for extrusion tubes and the like, showing my new design, the top rear
perspective view being a mirror image thereof; the fragmentary broken
lines indicating an extrusion tube are shown for illustrative purposes
only;
FIG. 2 is a top plan view thereof; and
FIG. 3 is a side elevational view thereof, the opposite side being a mirror
image thereof.