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... Commodity Code Description 84 16 10 Furnace burners for liquid fuel 84 16 20 Other furnace burners, including combination burners 84 16 30 Mechanical stockers, including their mechanical grates, mechanical ash dischargers and.. 84 16 90 Parts