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 16 Furnace burners for liquid/solid/gas fuel; mechanical stokers/grates... 84 16 30 Mechanical stockers, including their mechanical grates, mechanical ash dischargers and.. Commodity Code Description 84 16 30 00 Mechanical stockers, including their mechanical grates, mechanical ash dischargers and..