The ornamental design for a syntheticresintube, as shown and described.
FIG. 1 is a top plan view of a synthetic resin tube showing my new design,
the tube being symmetrical about its axis and the pattern shown being
repeated through the circumference of the tube, the bottom plan view being
a mirror image thereof;
FIG. 2 is a side elevational view thereof, the opposite side being a mirror
image thereof;
FIG. 3 is an end view thereof;
FIG. 4 is an end view thereof to the opposite end from that shown in FIG.
3; and
FIG. 5 is an enlarged top plan view of a portion of the tube shown in FIG.
1 taken about 5--5.