EU Trademark Classification EU01 Chemicals Additives (Chemical -) for ore floatation Class 01 Additives (Chemical -) for ore floatation 931 矿石浮选用化学添加剂 Chinese 矿石浮选用化学添加剂 English Additives (Chemical -) for ore floatation Site ref. 931 Class 01 Included in Harmonised Database (HDB)