EU Trademark Classification EU01 Chemicals 羧甲基纤维素（1631） Class 01 羧甲基纤维素 1631 Chinese 羧甲基纤维素 English Carboxymethyl cellulose Site ref. 1631 Class 01 Included in Harmonised Database (HDB), TM5 ID List, WIPO Madrid Goods and Services (MGS)