Charging pile, charging management method, charging management system and storage medium
Flexibly-deformable trailing edge variable camber wing rib
Flexibly-deformable trailing edge variable camber wing
Inflatable boat with split type quick-release air supply equipment
Split type inflatable life-saving equipment easy to store
Multi-directional expansion type portable inflatable life-saving equipment
Modularized inflatable life jacket easy to assemble and disassemble
Combined quick-release lifesaving equipment with driving unit
Lifesaving device with built-in centrifugal blade driving mechanism
Inflatable lifesaving equipment with hidden driving mechanism
Structure-adjustable water-immersed inflation equipment for inflatable lifesaving equipment
Intelligent marine windscreen wiper system with self-adaptive speed
Intelligent bidirectional control windscreen wiper device for ship