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; parts thereof 84 21 Centrifuges, including centrifugal dryers; filtering or purifying machinery and apparatus, for liquids or gases Commodity Code Description 84 21 11 - - Cream separators 84 21 12 - - - For domestic use 84 21 19 - - Other 84 21 21 - - For filtering or purifying water 84 21 22 - - For filtering or purifying beverages other than water 84 21 23 - - - Oil filters 84 21 29 - - Other 84 21 31 - - Intake air filters for internal combustion engines 84 21 32 -- Catalytic converters or particulate filters, whether or not combined, for purifying or filtering exhaust gases from internal combustion engines 84 21 39 - - Other 84 21 91 - - - For the clothes-dryers of Subheading 8421.12.10 84 21 99 - - Other