EU Trademark Classification EU01 Chemicals 甲基纤维素（3693） Class 01 Methylcellulose 3693 甲基纤维素 Chinese 甲基纤维素 English Methylcellulose Site ref. 3693 Class 01 Included in Harmonised Database (HDB), TM5 ID List, WIPO Madrid Goods and Services (MGS)