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Construction technology of cast-in-place reinforced concrete foundation pit inner support structure
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High slope hole pile inner wall shock absorption and load elimination small elastic structure and construction method thereof
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Steel operation platform for assisting hoisting of super high-rise steel bar
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Sizing steel ladder for people to get on and off
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Construction device and method for guaranteeing uniform stress of each bundle of steel strands through beam body post-tensioning method
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Simple and easy quick ann tears template support nail open
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Construction is with simple and easy portable ash pan
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Tool and method for backfilling fertilizer groove of deep foundation pit
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Horizontal opening fixing device for concrete conveying pump pipe
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Modularized turnover protective device for building engineering
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Hydroelectric circular pipe mold hanging die and construction method thereof
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Secondary pouring concrete combined type launder
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Device for preventing sundries from falling during construction of wet joints and transverse partition plates of bridge
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