足球比分捷报比分手机版 ,竞彩足球比分即时比分现场

比分捷报手机|体球网足球旧版|捷报比分足球即时比分老版|德甲赛程比分结果,360竞彩网,比分_即时比分_足球即时比分一捷报,球探比分足球即时

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

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

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.

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