Section 06 PRODUCTS OF THE CHEMICAL OR ALLIED INDUSTRIES 32 Tanning or dyeing extracts; tannins and their derivatives; dyes, pigments and ot 32 07 Prepared pigments, prepared opacifiers and prepared colours, vitrifiable enamels 32 07 20 32 07 20 00 Commodity Code Description 32 07 20 00 00 - Vitrifiable enamels and glazes, engobes (slips) and similar preparations