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

    Ultra thin composite membrane

    • Thickness( μ m)

      0.25

    • film reel length (m)

      1000-3000

    special efficiency special effects

    ★ Good high and low temperature resistance and electrical insulation

    ★ Excellent electrical performance and chemical corrosion resistance


    Product use

    Widely used in high-voltage motors, locomotive traction motors, metallurgical electric machines, etc