91在线网址,在线国产资源,精品国产三级 人人澡超碰碰97碰碰碰,无码人妻精品一区二区

Yttrium carbonate
Yttrium carbonate
Detail
Chemical composition: TREO>35%, Y2O3/TREO>90%, Fe2O3<0.2%, SO42-<0.3%
Acid insoluble <0.2%
Pink powder
Main application: mainly used as raw material for preparing yttrium oxide and erbium oxide
Scan QR codeClose