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Railway flatcar upper platform framework assembling device
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30-ton axle weight side-dumping coal hopper car and bottom door opening and closing mechanism thereof
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Anti-clamping device for hopper car
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Toolbox is used in maintenance
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Hopper car bottom door material clamping prevention device
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Limiting device for hopper car bottom door opening and closing mechanism
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Ballast clamping preventing device of middle ballast unloading bottom door
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Coil steel transportation platform
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Split type movable top cover opening and closing control system and train
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Automatic tipping vehicle
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Intelligent one-key starting device and method for electric locomotive
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Rail vehicle erecting method
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System and method for monitoring opening and closing states of bottom door of coal hopper car
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Rainproof threshold and vehicle door assembly of railway hopper vehicle
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Sealed access door of railway hopper car
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Coal leveling device
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Protective device for mounting and dismounting locomotive traction device
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CN111498318A
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Tipping self-discharging container
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Combined type miniature single-column oil press
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Device for mounting and dismounting locomotive air conditioning unit
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