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FR2753482A1
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Havage and concrete device for underground tapping
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FR2753483A1
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Concrete processing for underground flooring, and device for having and concrete appropriate for carrying out said method
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FR2749344A1
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Machine for havage for the pre-cutting of the arch of a gallery while being underground
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FR2723613A1
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Machine for havage for the pre-cutting of the arch of a gallery while being underground
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FR2693230A1
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Cutting blade, in particular for the execution of a curved groove in a face.
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FR2679295A1
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Process and device for the in situ concrete of a underground single and corresponding cutting blade.
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FR2612248A1
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Havage machine with mobile mounted havage head on a hanger guide and bends on its axis
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FR2305583A1
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Havage machine clean for curved bleeding
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