EU Trademark Classification EU37 Construction and repair 修理燃气供应系统（62343） Class 37 Repair of gas supply systems 62343 修理燃气供应系统 Chinese 修理燃气供应系统 English Repair of gas supply systems Site ref. 62343 Class 37 Included in Harmonised Database (HDB), WIPO Madrid Goods and Services (MGS)