久久精品免费视频182_国产99爱在线视频免费观看_无码专区一va亚洲天堂_中文毛片无遮挡高潮免5费

Ytterbium oxide
Ytterbium oxide
Detail
In yttrium oxide, gadolinite, monazite and xenotime minerals. The mass fraction of monazite containing rare earth elements generally reached 50%, ytterbium usually accounted for 0.03%.
Application: used in metallurgical and chemical experiments.
Scan QR codeClose