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: TOPKEN has 7 bases,built storehouse and sale office in Shanghai, Beijing, Tianjin, Zhengzhou, Zibo, Yixing City,nearby service customers.

Bridges and Tunnels

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Concrete accelerator and silica fume used in tunnels project

Related Products：Concrete Accelerator Keyword：accelerator tunnels jet concrete

: TOPKEN concrete accelerator is used in jet concrete, the mixing content is 3 ~ 6% of cement weight, initial setting 1 ~ 5 min, final set 5 ~ 10 min.

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