I claim the ornamental design for a carbon fiber manufacturer, as shown and described.
FIG. 1 shows a complete perspective view of the carbon fiber manufacturer.
FIG. 2 shows a close-up perspective view of the farthest left portion thereof.
FIG. 3 shows a close-up perspective view to the right of FIG. 2.
FIG. 4 shows a close-up perspective view to the right of FIG. 3.
FIG. 5 shows a close-up perspective view to the right of FIG. 4; and,
FIG. 6 shows a close-up perspective view of the farthest right portion thereof.
The waved dashed lines in FIGS. 2-6 indicated the bounds of enlarged segments and form no part of the claimed invention. All other dashed lines depict portions of the carbon fiber manufacturer that form no part of the claimed design.