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 79 Machines and mechanical appliances, having individual functions, nes 84 79 89 Machinery for assembling central processing unit (CPU) daughter boards i 84 79 89 50 Machinery for assembling central processing unit (CPU) daughter boards i Commodity Code Description 84 79 89 50 00 Machinery for assembling central processing unit (CPU) daughter boards i