EU Trademark Classification EU17 Rubber and plastics goods Butyl rubber (Liquid -) Class 17 Butyl rubber (Liquid -) 37214 液态丁基橡胶 Chinese 液态丁基橡胶 English Butyl rubber (Liquid -) Site ref. 37214 Class 17 Included in Harmonised Database (HDB), Nice Alphabetical List, WIPO Madrid Goods and Services (MGS)