国产午夜小视频在线观看_国产热无码手机版_亚洲成a人v欧美综合天堂_午夜福利院中文字幕 ,国产h色在线观看视频_国产在线观看免费无码_理论国产理论在线观看_国产女主播精品大秀系列

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