EU Trademark Classification EU07 Machinery Suction valves for air compressors Class 07 Suction valves for air compressors 18001 空气压缩机用吸气阀 Chinese 空气压缩机用吸气阀 English Suction valves for air compressors Site ref. 18001 Class 07 Included in Harmonised Database (HDB), WIPO Madrid Goods and Services (MGS)