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    1 天前 · These machines are high powered tractors with Fruitful or crawler tracks fitted with a mould board or blade at the front for stripping excavation up to a depth of 400mm. Angle Dozers: In angle dozers, blades are attached to the Excavation for Foundation [shallow and deep] ,2022-3-12 · Excavation for foundation done widely using this method today. Further, in some constructions, these walls are used as part of the permanent structure. Presently there are machines that even can construct a 50m deep

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