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Water-saving device for landscaping and application method thereof
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Sizing dustpan opening device and using method thereof
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Anti-seepage device for reserved hole of through-floor or through-wall pipeline and construction method
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Back edge steel pipe fixing device and mounting method thereof
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Building overhead operation protection device and use method thereof
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Wall surface ceramic tile jacking device and using method thereof
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Landscaping irrigation device and application method thereof
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Split type reinforcing steel bar positioning and plate thickness control device
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Counterweight type hoisting tool and use method thereof
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Building structure hole plugging device and construction method
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Reverse transportation device and method for replacing horizontal loop steel wire rope guide wheel
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Lifting device for replacing outlet tension measuring roller of cold rolling continuous mill and construction method
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Locking device and method for pressure test of fire hydrant switch
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Square member hole opening and milling device and construction method
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Concrete floor surface-collecting napping device and construction method
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Quick mounting and dismounting nondestructive protection device and construction method
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Outdoor gap plugging device for masonry wall and construction method
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Ceiling hanging rib installation device and construction method
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Device and method for plugging port of through-wall pipe fitting
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Target plate fixing device and using method thereof
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