EU Trademark Classification EU01 Chemicals 陶瓷过滤材料[颗粒状]（2970） Class 01 陶瓷过滤材料[颗粒状] 2970 Chinese 陶瓷过滤材料[颗粒状] English Filter materials of ceramic [in particulate form] Site ref. 2970 Class 01 Included in Harmonised Database (HDB)