Subheading 2830.90 · Section VI
2830.90
Sulphides and polysulphides; whether or not chemically defined, other than sulphides of sodium
28 Inorganic chemicals; organic and inorganic compounds of precious metals; of rare earth metals, of radio-active elements and of isotopes
2830 Sulphides; polysulphides whether or not chemically defined
2830.90 Whether or not chemically defined, other than sulphides of sodium
Other subheadings under 2830