东京道区二区三区,www.天天操,九九亚洲视频,91热国内精品永久免费观看,国产专区精品,久久99九九精品免费,成人不卡国产福利电影在线看

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.