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A kind of construction site cement flooring device for grinding and production and preparation method thereof
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A kind of municipal works municipal drainage device and production and preparation method thereof
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A kind of scaffold and production and preparation method thereof convenient for fixed installation
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A kind of small-sized sluice and its construction method convenient for filtering
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A kind of reservoir for being convenient to clean and filtering and its construction and application method
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A kind of lubricating grease used in cranes oscillating uniform device and production and preparation method thereof
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A kind of efficient attemperation apparatus of crane maintenance lubricating oil and production and preparation method thereof
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A kind of crane facility parts lubricating oil Efficient Agitator and production and preparation method thereof
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A kind of forest detection soil sampling apptss and its manufacture and the method for sampling
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A kind of construction and decoration iron nail fast screening devices and production and preparation method thereof
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A kind of environment measuring water sample extraction element and production and preparation method thereof
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A kind of highway intermittent sprinkling truck and production and preparation method thereof
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A kind of river sand sorting unit and production and preparation method thereof
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A kind of crane maintenance rolling bearing high-efficiency cleaning device and production and preparation method thereof
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A kind of quick mixed stirring device of crane maintenance hydraulic oil and production and preparation method thereof
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A kind of assembly type hydraulic engineering multi-functional irrigation rig and its manufacture method
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Aquatic breeding equipment based on Internet of Things and manufacturing and breeding methods thereof
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Close breeding facility and its manufacture, construction and cultural method in river
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