1024日韩,青青精品视频国产,甘甜的牛奶小说全文阅读在哪里看,婬荡的女教师4波多野结衣,穿越恋爱小说 女主强,双性大乳的风月艳事by奶大小说,尤物精品无码视频在线精品视频,国产精品久久久久久搜索,小说家庭伦理

  • Science and technology are primary productive forces

    Dimming glass film

    • Thickness( μ m)

      500

    • width (mm)

      1500

    • film reel length (m)

      3000

    special efficiency special effects

    ★ The light transmittance is higher than 80% (when powered on); Less than 6% (without power)

    ★ Continuous power on time in transparent state: more than 50000 hours

    ★ Switching times: more than 3000000


    Product use

    Widely used in electronic curtains, glass curtain walls, smart kitchen windows, large projection advertising walls, etc