EU Trademark Classification EU11 Lighting, heating and air conditioning 调节阀（罐内液位控制）（30330） Class 11 调节阀（罐内液位控制） 30330 Chinese 调节阀（罐内液位控制） English Regulating valves [level controlling in tanks] Site ref. 30330 Class 11 Included in Harmonised Database (HDB)