EU Trademark Classification EU11 Lighting, heating and air conditioning 构成供水系统部件的泄压设备（30227） Class 11 构成供水系统部件的泄压设备 30227 Chinese 构成供水系统部件的泄压设备 English Pressure relief apparatus forming part of water supply systems Site ref. 30227 Class 11 Included in Harmonised Database (HDB)