EU Trademark Classification EU37 Construction and repair 修理沼气设备和机器（62338） Class 37 Repair of biogas plants and machines 62338 修理沼气设备和机器 Chinese 修理沼气设备和机器 English Repair of biogas plants and machines Site ref. 62338 Class 37 Included in Harmonised Database (HDB), WIPO Madrid Goods and Services (MGS)