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 42 Machines for type-setting, making printing blocks..; printing components 84 42 40 Parts of the foregoing machinery, apparatus and equipment 84 42 40 00 Parts of the foregoing machinery, apparatus and equipment Commodity Code Description 84 42 40 00 000 Parts of the foregoing machinery, apparatus and equipment