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

    XMF-CH - Ⅱ thermal insulation film

    • Thickness( μ m)

      2

    • visible light transmittance

      25%

    • sunshade coefficient

      35%

    • heat gain coefficient

      30%

    • total solar energy barrier ratio

      70%

    special efficiency special effects
    Product use

    Widely used for the protection of automobile side windshield and sunroof glass