Section 16 MACHINERY AND MECHANICAL APPLIANCES; ELECTRICAL EQUIPMENT; PARTS THEREOF; SOUND RECORDERS AND REPRODUCERS, TELEVISION IMAGE AND SOUND RECORDERS AND REPRODUCERS AND PARTS AND ACCESSORIES OF SUCH ARTICLES 84 Nuclear reactors, boilers, machinery and mechanical appliances; partsthereof 84 21 Centrifuges, including centrifugal dryers; filtering or purifying machinery and apparatus, for liquids or gases 84 21 91 OF CENTRIFUGES, INCLUDING CENTRIFUGAL DRYERS: Commodity Code Description 84 21 91 10 FOR THE CLOTHES-DRYERS OF SUBHEADING 84211210 84 21 91 90 OTHER