EU Trademark Classification EU06 Metal goods 固定管道用金属铰链（12033） Class 06 固定管道用金属铰链 12033 Chinese 固定管道用金属铰链 English Hinges of metal for the fixing of pipes Site ref. 12033 Class 06 Included in Harmonised Database (HDB), WIPO Madrid Goods and Services (MGS)