Explanatory notes
… 26.18 to 26.20 ). ( c) Oxides , peroxides and hydroxides of precious metals ( heading 28.43 ), of radioactive elements ( … matter with a basis of metal oxides ( heading 32.06 ), prepared pigments, prepared opacifiers and prepared colours, vitrifiable enamels and glazes and similar products of the kind used in the ceramic, enamelling or …