日产精品久久久一区二区,国产高清在线a视频大全,国产自产v一区二区三区c,欧美亚洲国产一区,亚洲大片免费看,亚洲国语,亚洲成a人v在线观看

CN
CN
  • SBTHF?-Ⅴ Grouting Material for Post-tensioned Pre-stressed Concrete Structure
    SBTHF?-Ⅴ Grouting Material for Post-tensioned Pre-stressed Concrete Structure Download

    1565655330711944QZNO.jpg

    SBTHF? -V is an amalgamation of cement, low-alkali, high-expansion material and functional polymers.The grout possesses multiple properties with long workable time, no bleeding, and mild expansion. It is suited for the preparation of post-tensioning duct grouts applied in expressway and large bridge projects.