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 20 CALENDERING OR OTHER ROLLING MACHINES, OTHER THAN FOR METALS OR GLASS, 84 20 91 PARTS: CYLINDERS Commodity Code Description 84 20 91 00 PARTS: CYLINDERS