EU Trademark Classification EU01 Chemicals 流变添加剂（非医用）（4521） Class 01 Rheological additives, other than for medical use 4521 流变添加剂（非医用） Chinese 流变添加剂（非医用） English Rheological additives, other than for medical use Site ref. 4521 Class 01 Included in Harmonised Database (HDB)