EU Trademark Classification EU02 Paints and varnishes Cobalt oxide as colorant Class 02 Cobalt oxide as colorant 5656 用作着色剂的氧化钴 Chinese 用作着色剂的氧化钴 English Cobalt oxide as colorant Spanish Óxido de cobalto como colorante Site ref. 5656 Class 02 Included in Harmonised Database (HDB)