狠狠久久综合,国产在线五月综合婷婷,日本中文字幕在线观看视频,欧美日韩亚洲一区二区精品,露胸美女图片,热辣小秘书办公室,国产色视频网站免费观看

CN
CN
  • 潤(rùn)強(qiáng)絲?-VI Polyacrylonitrile Fiber
    潤(rùn)強(qiáng)絲?-VI Polyacrylonitrile Fiber Download

    1565848076396889qH9L.jpg

    RQS ? -Ⅵ is comprised of short, thin fibers, predominantly comprised of Polyacrylonitrile (PAN), with a non-circular section shape made by wet spinning for fiber-reinforced high-performance concrete and mortar. The fiber possesses excellent dispersion in cement-based materials with an effective bonding property between fiber and the matrix due to the surface treatment of hydrophilic modification. RQS ? -Ⅵ can decrease and impede the plastic and drying shrinkage of cement-based materials. It can also significantly improve the crack-resistance, impermeability, impact and fire resistance of cement-based materials.