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 29 Self-propelled bulldozers, angledozers, graders, levellers, scrapers, mechanical 84 29 19 Commodity Code Description 84 29 19 00 84 29 19 10 New 84 29 19 20 Used or reconditioned 84 29 19 90 Used or reconditioned