久精品国产欧美亚洲色aⅴ大片_狠狠人妻久久久久久综合 亚洲国产青青精品在线_a级全黄中国毛片全部免费视频_

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