Section 16 MACHINERY AND MECHANICAL APPLIANCES; ELECTRICAL EQUIPMENT; PARTS THERE OF; SOUND RECORDERS AND REPRODUCERS, TELEVISION IMAGE AND SOUND RECORD ERS AND REPRODUCERS, AND PARTS AND ACCESSORIES OF SUCH ARTICLES 84 Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof 84 30 Other moving, grading, levelling, scraping, excavating, tamping, compacting, ext 84 30 31 Commodity Code Description 84 30 31 00 84 30 31 10 New 84 30 31 20 Used or reconditioned 84 30 31 90 Used or reconditioned