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 68 Machinery and apparatus for soldering, brazing or welding, whether or not capable of cutting, other than those of heading 8515; gas-operated surface tempering machines and appliances Commodity Code Description 84 68 10 - Hand-held blow pipes 84 68 20 - Other gas-operated machinery and apparatus 84 68 80 - Other machinery and apparatus 84 68 90 - Parts