Section 16 MACHINERY AND MECHANICAL APPLIANCES; ELECTRICAL EQUIPMENT; PARTS THERE OF; SOUND RECORDERS AND REPRODUCERS, TELEVISION IMAGE AND SOUND RECORD ERS AND REPRODUCERS, AND PARTS AND ACCESSORIES OF SUCH ARTICLES 84 Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof 84 57 Machining centres, unit construction machines (single station) and multi-station 84 57 10 84 57 10 00 Commodity Code Description 84 57 10 00 00 - Machining centres 84 57 20 00 00 - Unit construction machines (single station) 84 57 30 00 00 - Multi-station transfer machines