Automatic release type Beidou position indicating buoy
Detachable cargo hold connecting wing double-fuselage logistics unmanned aerial vehicle
Device convenient for clamping heavy object with smooth surface
Fire-fighting unmanned aerial vehicle with air purification function for forest
Intelligent goods shelf capable of reading goods information
Low-speed walking system of mechanical drive operation vehicle for contact wire
Multi-rotor unmanned aerial vehicle for sampling water
Portable object moving vehicle with adjustable force arm
Refrigerator car refrigerating unit with intelligent temperature sensing system