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Self-loading and unloading type molten aluminum ladle transport vehicle and transport method
Unmanned aerial vehicle leg opening and closing device
Buffer energy absorption device and control method thereof
Wind power blade lifting manipulator and lifting appliance
Fan blade lifting appliance swinging mechanism and method
Multifunctional aerial work construction device for tunnel construction
Intelligent monitoring equipment and system for cable crane in bridge construction
Intelligent monitoring system and digital bridge erecting machine in bridge construction
Night guidance system for night luminous warning traffic sign on rural road
Wind power single-blade large-angle installation lifting appliance and method
Bee disturbing device for power transmission line inspection
Tripping reconnection type herringbone holding pole cap