Section VI — Products of the chemical or allied industries
Subheading
284990
Other
Common commodities
Boron carbide powderTungsten carbide powderTitanium carbide powderTantalum carbide powderZirconium carbide powderVanadium carbide powderAluminum carbide powderHeavy metal carbide powdersWC (tungsten carbide)TiC (titanium carbide)