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 31 Parts suitable for use with the machinery of 84.25 to 84.30 84 31 49 Cutting edges or end bits of a kind used for bulldozer or angledozer blades 84 31 49 40 Cutting edges or end bits of a kind used for bulldozer or angledozer blades Commodity Code Description 84 31 49 40 00 Cutting edges or end bits of a kind used for bulldozer or angledozer blades