84

8401

Nuclear reactors; fuel elements (cartridges), non-irradiated, for nuclear reactors; machinery and apparatus for isotopic separation; parts thereof:

8402

Steam or other vapor generating boilers (other than central heating hot water boilers capable also of producing low pressure steam); super-heated water boilers; parts thereof:

8403

Central heating boilers (other than those of heading 8402) and parts thereof:

XVI

Section XVI