国产69精品久久,国产91一区二区三区传媒,91亚洲国产成人久久精品麻豆,亚洲精品乱码久久久,日本一区二区三区,蜜穴视频app下载,天天躁狠狠躁夜夜躁,狠狠色婷婷丁香五月

CN
CN
  • SBT?-N(II) Liquid Setting Accelerator(Alkali-free)
    SBT?-N(II) Liquid Setting Accelerator(Alkali-free) Download

    1565847913679772IeN6.jpg

    SBT ? -N(II) is a high performance alkali-free setting accelerator for sprayed concrete. It speeds the chemical reaction between cement and water which causes mortar to set faster and increase the early strength development. SBT ? -N(II) has the properties of well adapted to cement, quick setting, high early strength and low rebound of concrete. It is widely used in many fields such as mining, hydropower, highway, railway tunnel, laneway, cave and so on.