Deformation-resisting supporting device for railway flatcar open type draft sill
Carrying cloud deck for unmanned aerial vehicle high-energy ray emitter
Rotating and sliding integrated type double-function movable head cover
Shared parking space distribution system and method adapting to delay demand
Hand wheel device capable of being bidirectionally locked and freight vehicle
Automobile-container dual-purpose concave bottom transport vehicle
Middle movable frame of double-layer steam collection transport automobile
Fold line-type multifunctional door post for truck body
Height-adjustable bracket for loading and unloading long steel rail
Detachable automobile and container dual-purpose railway transport vehicle
Modular structure of double-layer car-container transport vehicle
Side bearing body assembly of heavy-load railway wagon