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Unique 4522 C Shape And Sand Machine

Unique 4522 C Shape And Sand Machine

Jan 26 2017TBM Tunnel Boring Machine tunnel boring machine TBM is a machine used to excavate tunnels with a circular cross section through a variety of soil and rock strata They can bore through anything from hard rock to sand Tunnel diameters can range from a meter to 1925metre 1 Mechanicalsupport TBM 2 Compressedair TBM 3 See Details gt

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