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 66 PARTS AND ACCESSORIES SUITABLE FOR USE SOLELY OR PRINCIPALLY WITH 84 66 20 WORK HOLDERS Commodity Code Description 84 66 20 00 WORK HOLDERS