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; filtering/purifying machinery... for liquids or gases 84 21 29 Other, of fluoropolymers and with filter or purifier membrane thickness 84 21 29 60 Other, of fluoropolymers and with filter or purifier membrane thickness Commodity Code Description 84 21 29 60 00 Other, of fluoropolymers and with filter or purifier membrane thickness