EU Trademark Classification EU17 Rubber and plastics goods Caulking compounds for sealing pipe threads Class 17 Caulking compounds for sealing pipe threads 37173 密封管螺纹用填缝剂 Chinese 密封管螺纹用填缝剂 English Caulking compounds for sealing pipe threads Site ref. 37173 Class 17 Included in Harmonised Database (HDB)