EU Trademark Classification EU40 Treatment of materials 冷冻柜隔热气体回收利用（66583） Class 40 冷冻柜隔热气体回收利用 66583 Chinese 冷冻柜隔热气体回收利用 English Recycling of insulating gases from freezers Site ref. 66583 Class 40 Included in Harmonised Database (HDB), WIPO Madrid Goods and Services (MGS)