• <sub id="wu0j8"><table id="wu0j8"><div id="wu0j8"></div></table></sub>
    <form id="wu0j8"><legend id="wu0j8"></legend></form>
    <wbr id="wu0j8"></wbr>

    <nav id="wu0j8"></nav>
  • <form id="wu0j8"><legend id="wu0j8"></legend></form>
    <dd id="wu0j8"></dd>
    <sub id="wu0j8"><table id="wu0j8"><div id="wu0j8"></div></table></sub>
      <nav id="wu0j8"><optgroup id="wu0j8"></optgroup></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 >

       
      美女扒开尿囗给男人玩的视频,国自产视频在线观看,扒开两腿中间缝流白浆在线看,日韩欧美国产一区精品