<form id="kktsy"><legend id="kktsy"></legend></form>
  • <form id="kktsy"><legend id="kktsy"></legend></form>

      <sub id="kktsy"><listing id="kktsy"></listing></sub>
    1. <nav id="kktsy"></nav>
      <nav id="kktsy"></nav>

          <form id="kktsy"></form>
          <nav id="kktsy"></nav>
          • 首頁
          •  
          • 產品
          •  
          • 寶石元件
           
          寶石元件

          • 寶石材料

            Sapphire is a single crystal aluminum oxide (Al2O3). Its Mohs hardness is 9, it is one of the hardest materials. Sapphire has good mechanical strength, and it is also transparent from visible to IR sp..

          • 寶石窗片

            Sapphire Windows are made from Sapphire material, which has transparent range from 180-4500nm. The refractive index is 1.755 at 1000nm. ..

          < Previous1Next >

           
          中文字幕欧美成人免费男人边吃奶边添下面好爽视频午夜亚洲国产理论片亚洲2020我的好妈妈BD高清在线观看