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 56 Machine-tools for working material by laser/light/photon beam, etc 84 56 40 Plasma cleaner machines that remove organic contaminants from electron micros 84 56 40 20 Plasma cleaner machines that remove organic contaminants from electron micros Commodity Code Description 84 56 40 20 00 Plasma cleaner machines that remove organic contaminants from electron micros