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 20 Calendering or other rolling machines, other than for metals or glass, and cylinders therefor. 84 20 91 Cylinders 84 20 91 00 Cylinders Commodity Code Description 84 20 91 00 000 Cylinders