EU Trademark Classification EU11 Lighting, heating and air conditioning 储罐用液位控制阀（29899） Class 11 储罐用液位控制阀 29899 Chinese 储罐用液位控制阀 English Level controlling valves for tanks Site ref. 29899 Class 11 Included in Harmonised Database (HDB), WIPO Madrid Goods and Services (MGS)