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 72 Other office machines (incl. hectograph... duplicating machines...) 84 72 30 Machines for sorting or folding mail or for inserting mail in envelopes or bands, .... 84 72 30 00 Machines for sorting or folding mail or for inserting mail in envelopes or bands, .... Commodity Code Description 84 72 30 00 000 Machines for sorting or folding mail or for inserting mail in envelopes or bands, ....