EU Trademark Classification EU40 Treatment of materials Treating of metal Class 40 Treating of metal 66856 金属加工(搪瓷) Chinese 金属加工(搪瓷) English Treating [enamelling] of metal Site ref. 66856 Class 40 Included in Harmonised Database (HDB), WIPO Madrid Goods and Services (MGS) Name qualifier enamelling