国产成人在线一区二区_国产日韩综合导航_亚洲综合福利在线观看_h漫免费在线观看_免费看9 ,亚洲日本人成网站在线播放18,色一情一乱一交一区,日本视频免费高清一

Yttrium oxide
Yttrium oxide
Detail
Mainly used for manufacturing microwave magnetic materials for military use and important materials (single crystal; yttrium iron garnet, yttrium aluminum garnet composite oxide, etc.) are also used as fluorescent powder and other high brightness CRT glass coatings, ceramic materials, additives, big screen TV optical. Also used in the manufacture of film capacitors and special refractories, as well as high pressure mercury lamps, lasers, storage devices, such as magnetic bubble material.
Scan QR codeClose