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 23 For machinery of heading 84.29 or 84.30 : Oil filters 84 21 23 11 For machinery of heading 84.29 or 84.30 : Oil filters Commodity Code Description 84 21 23 11 00 For machinery of heading 84.29 or 84.30 : Oil filters