EU Trademark Classification EU17 Rubber and plastics goods 管道用非金属接头（37891） Class 17 管道用非金属接头 37891 Chinese 管道用非金属接头 English Pipes (Junctions for -), not of metal Site ref. 37891 Class 17 Included in Harmonised Database (HDB), Nice Alphabetical List, WIPO Madrid Goods and Services (MGS)