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Cast-in place pile pouring and pile head cutting-off method
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Steel sheet pile cofferdam bottom rock-socketed anchoring method
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Lifting platform system for placing large caisson in water
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Broken drill pipe salvage device inside pile foundation hole
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System and method for transporting large concrete caisson boxes
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Concrete vertical wall steel bar protection layer limiting device and method
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Fishing device for fallen drill teeth of roller bit
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Prestressed reinforcement rock-socketed cast-in-place pile and construction method thereof
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Assembly-type steel trestle
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Concrete circulation conveying system with hanging cages
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Bridge cantilever box girder construction hanging basket pre-pressing loading device
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Bottomless double-wall steel cover box assembling structure
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Steel hanging box flexible hanging device
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Locking-type pile gripper of pile foundation
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Movable steel pipe raft snorkeling over-water construction platform
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Frog type ship propulsion device
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Prefabricating process of post-tensioned prestressing pipe pile joint
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Finish-rolled deformed steel bar and nut combination used for cantilever creeping formwork construction and installation method
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Clamping pile constructed in concrete structure on upper portion of high pile dock pipe pile
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