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 84 Gaskets and similar joints, combined; sets or assortments thereof Commodity Code Description 84 84 10 Gaskets and similar joints of metal sheeting combined with other material or of two or.. 84 84 20 Mechanical seals 84 84 90 Other