欧美人与动人物姣配xxxx_亚洲 另类 熟女 字幕_麻豆 美女 丝袜 人妻 中文_亚洲国产精品久久久久婷蜜芽_国产av旡码专区亚洲av

  • Operate all kinds of rare earth wire materials,

    Processing nonferrous alloys and rare earth alloy wires and bars

    Implementation standards: customized according to customer requirements Quality system: ISO9001

    Applicable process: evaporation coating, ion sputtering

    Specifications: according to customer requirements

  • Operate all kinds of rare earth wire materials,

    Processing nonferrous alloys and rare earth alloy wires and bars

    Implementation standards: customized according to customer requirements Quality system: ISO9001

    Applicable process: evaporation coating, ion sputtering

    Specifications: according to customer requirements

  • Operate all kinds of rare earth wire materials,

    Processing nonferrous alloys and rare earth alloy wires and bars

    Implementation standards: customized according to customer requirements Quality system: ISO9001

    Applicable process: evaporation coating, ion sputtering

    Applicable process: evaporation coating, ion sputtering

Ammonium

Ammonium

  • Category:Vanadium Compound
  • Weight:0

Details:

Purity: 99.9%~99.99%

Properties: White powder

Molecular formula:NH4VO3

Molecular weight:116.98

Relative density :2.326

Melting point:200℃

 Characters: It is slightly Soluble icold water and hot ethanol. Soluble in hot water and ammonium hydroxide. It shall become vanadium pentoxide when burning in the air.

 Use: Mainly used in chemical reagent, catalyst, dryer, glaze for ceramic industry. 


а天堂8中文最新版在线官网| 亚洲乱亚洲乱少妇无码99p| 中文字幕乱码无码人妻系列蜜桃 | a级毛片无码久久精品免费| 国产 校园 另类 小说区 | 欧美性受xxxx黑人xyx性爽| 国产精品国产三级国产专区50| 亚洲国产成人一区二区三区 | 丰满少妇被猛烈进入高清播放| 亚洲精品无码一区二区三区久久久| 亚洲av无码之国产精品网址蜜芽 | 亚洲免费观看视频| 虎白女粉嫩尤物福利视频| 无码av大香线蕉| 野花在线无码视频在线播放| 亚洲一码二码三码精华液| 又色又爽又高潮免费观看| 国产高潮刺激叫喊视频| 窝窝影院午夜看片| 777久久精品一区二区三区无码| 久久精品中文字幕大胸| 精品麻豆剧传媒av国产| 中文字幕无线码一区2020青青| 人妻av无码专区| 亚洲一区 日韩精品 中文字幕| 7777精品久久久大香线蕉| 亚洲av成人网站在线观看| 无码人妻精品一区二区在线视频| 国产亚洲人成无码网在线观看| 免费人成视频x8x8| 亚洲永久网址在线观看| aaa少妇高潮大片免费看| 无码日韩人妻精品久久| 亚洲国产精品一区二区久久| 精品国产乱码久久久久APP下载 | 日本中文一二区有码在线| 日韩精品一区二区三区视频| 国产精品久久av色网| 国产 麻豆 日韩 欧美 久久| 三年片在线观看免费观看大全中国| 少妇性饥渴无码a区免费|