国产精品区一,亚洲日产精品一二三区,国产精品久久久久精囗交,久久久久久综合,国产视频一区在线免费观看,天天cao在线,九月激情网

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.