EU Trademark Classification EU01 Chemicals 海泡石[硅酸镁]（4737） Class 01 Sepiolite [magnesium silicate] 4737 海泡石[硅酸镁] Chinese 海泡石[硅酸镁] English Sepiolite [magnesium silicate] Site ref. 4737 Class 01 Included in Harmonised Database (HDB)