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 31 Parts suitable for use solely or principally with the machinery of headings 84.2 Commodity Code Description 84 31 10 84 31 20 84 31 31 84 31 39 84 31 41 84 31 42 84 31 43 84 31 49