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Device for improving wind uncovering resistance of roof and roof panel structure
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Segmented demolition construction method for large-span beam string structure
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Tolerance semi-rigid node and construction method
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Board seam leak protection structure, assembled roof boarding and assembled roof boarding system
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Assembled composite wall
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Steel stair face frontier defense guardrail and steel stair
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Component for assembly type building and assembly type building with component
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Construction auxiliary device
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Manufacturing method of octagonal steel member and octagonal steel member manufactured by same
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Metal roof board fixing device
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Basement construction method
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Bearing assembly and hoisting device
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