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 03 CENTRAL HEATING BOILER OTHER THAN THOSE OF HEADING 84.02. Commodity Code Description 84 03 10 BOILERS 84 03 90 PARTS:CENTRAL HEATING BOILERS OTHER THAN THOSE OF HD. 84.02