EU Trademark Classification EU06 Metal goods 压力驱动环[金属]（12999） Class 06 Pressure actuated rings [metal] 12999 压力驱动环[金属] Chinese 压力驱动环[金属] English Pressure actuated rings [metal] Site ref. 12999 Class 06 Included in Harmonised Database (HDB), WIPO Madrid Goods and Services (MGS)