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 30 PILE-DRIVERS AND PILE-EXTRACTORS; SNOW-PLOUGHS AND SNOW-BLOWERS. Commodity Code Description 84 30 10 PILE-DRIVERS AND PILE-EXTRACTORS 84 30 20 SNOW-PLOUGHS AND SNOW-BLOWERS 84 30 31 SELF PROPELLED (COAL OR ROCK CUTTERS & TUNNELLING MACHINERY) 84 30 39 OTHER COLD OR ROCK CUTTERS AND TUNNELLING MACHINERY 84 30 41 SELF PROPELLED (BORING OR SINKING MACHINERY) 84 30 49 OTHER BORING OR SINKING MACHINERY 84 30 50 OTHER MACHINERY, SELF PROPELLED 84 30 61 TAMPING OR COMPACTING MACHINERY ( NOT SELF PROPELLED) 84 30 69 OTHER MACHINERY, NOT SELF-PROPELLED