无码高潮喷水视频在线观看_成人精品天堂一区二区_亚洲中文字无线乱码va_国产电影a在线精品亚洲毛片

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