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; partsthereof 84 56 MACHINE-TOOLS FOR WORKING MATERIAL BY LASER/LIGHT/PHOTON BEAM, ETC Commodity Code Description 84 56 10 Operated by laser or other light or photon beam processes 84 56 20 Operated by ultrasonic processes 84 56 30 Operated by electro-discharge processes 84 56 90 Other