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Combined type blind window for railway boxcar and forming apparatus thereof
Articulated slewing jib crane and wind turbine incorporating same
Laser contour-based wheel set detection system and method and a medium
Cam power-off device for point switch and point switch
Retarder fault monitoring device and installation method thereof
Dry-type wheel rim lubricating device and dry-type train wheel rim lubricating method
Dry-type rim lubricating system and lubricating method
Train rail edge detection system based on thermal imaging and acoustic imaging technologies