亚洲欧美日韩在线中字幕-一区二区免费看-91av 视频在线观看-八戒影视大全免费高清版-啊轻点灬太粗嗯太深了-2019国产品在线视频-色与欲影视天天看综合网-免费看男女做爰爽爽视频-国产精品一区2区三区内射

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.