EU Trademark Classification EU40 Treatment of materials 提供有关陶瓷加工的信息（66577） Class 40 提供有关陶瓷加工的信息 66577 Chinese 提供有关陶瓷加工的信息 English Providing information relating to ceramic processing Site ref. 66577 Class 40 Included in Harmonised Database (HDB), WIPO Madrid Goods and Services (MGS)