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 23 Weighing machinery (excluding balances of a sensitivity of 5 cg or better), including weight operated counting or checking machines; weighing machine weights of all kinds. 84 23 90 Weighing machine weights of all kinds; parts of weighing machinery Commodity Code Description 84 23 90 00 Weighing machine weights of all kinds; parts of weighing machinery