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approved tunnel concrete shotcrete machine for sale

Before the construction of the approved tunnel concrete shotcrete machine for sale, it is necessary to check whether the specifications of the roadway meet the design requirements.

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Before the construction of the approved tunnel concrete shotcrete machine for sale, it is necessary to check whether the specifications of the roadway meet the design requirements. Those that do not meet the design requirements must be dealt with before starting the construction; the spraying sequence is to spray the wall first, then the arch, from bottom to top, first spray to form a half-side roadway, and then turn it around. The nozzle sprays the other half of the roadway, and finally closes and closes the roof.

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