美国海关
编码查询

- 6 Products of the Chemical or Allied Industries

- 28 Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes

- 2844 Radioactive chemical elements and radioactive isotopes (including the fissile or fertile chemical elements and isotopes) and their compounds; mixtures and residues containing these products:

- （无子目描述）

- 284430 Uranium depleted in U235 and its compounds; thorium and its compounds; alloys, dispersions (including cermets), ceramic products and mixtures containing uranium depleted in U235, thorium, or compounds of these products:

- 2845 Isotopes other than those of heading 2844; compounds, inorganic or organic, of such isotopes, whether or not chemically defined:

- （无子目描述）

- 2846 Compounds, inorganic or organic, of rare-earth metals, of yttrium or of scandium, or of mixtures of these metals:

- （无子目描述）