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 55 METAL-ROLLING MILLS AND ROLLS THEREFOR. 84 55 90 OTHER PARTS FOR METAL-ROLLING MILLS Commodity Code Description 84 55 90 00 OTHER PARTS FOR METAL-ROLLING MILLS