成人av在线,国产精品受不了乱视频,成年视频网站大全在线观看,日本熟日本熟妇视频

    • 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