编码描述:compounds of europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium or yttr 编码来源:英国原始海关数据 产品标签: dysprosium,terbium,europium,lutetium,erbium,gadolinium,holmium,compound,thulium,yt