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 65 Machine-tools for working wood, cork, bone, hard rubber, etc 84 65 99 Machines for deburring the surfaces of printed circuit boards or printed wiring board 84 65 99 50 Machines for deburring the surfaces of printed circuit boards or printed wiring board Commodity Code Description 84 65 99 50 00 Machines for deburring the surfaces of printed circuit boards or printed wiring board