Section 06 Products of the chemical or allied 28 Inorganic chemicals; organic or inorganic compounds of precious metals, of rare earth metals, of radioactive elements or isotopes 28 41 Salts of oxometallic or peroxometallic acids 28 41 80 - Tungstates (wolframates) 28 41 80 00 - Tungstates (wolframates) Commodity Code Description 28 41 80 00 000 - Tungstates (wolframates)