EU Trademark Classification EU01 Chemicals Etching mordants Class 01 Etching mordants 2886 蚀刻媒染剂[酸] Chinese 蚀刻媒染剂[酸] English Etching mordants [acids] Spanish mordientes de grabado [ácidos] Site ref. 2886 Class 01 Included in Harmonised Database (HDB) Name qualifier acids