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Shaft cantilever concrete unloader
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Vibration rolling device of bedding material spreading machine
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Telescopic feeding device of bedding material spreading machine
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Spreading width and thickness control device of bedding material spreading machine
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Water supply steel pipe hydrostatic test inner plugging head and plugging method thereof
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Bridge deck bearing combined support
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Portable automatic geotechnique's granule test equipment
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Quick-hardening waterproof anchoring agent and preparation method thereof
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Horizontal light blasting hole direction control device and use method thereof
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Self-compacting ultrahigh-strength mortar and preparation method thereof
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Method for detecting curtain grouting quality by GIN (cement in-situ) grouting method
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Concrete mixture hardness determination instrument for slip form construction
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High-pressure gas pipe settlement control method for subway interval tunnel construction
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Safe construction ventilation method for large-diameter earth pressure balance shield of low-gas tunnel
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Quick deruster of wire rod
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Method for excavating hyperbolic inverted suspension dome in vertical shaft
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Tunnel bottom plate thin-wall lining water burst treatment method
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Mounting method of hydropower station down-the-hole type radial gate
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Multifunctional combined foldable construction passage ladder
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Underground inclined shaft excavation measuring method
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