Offshore buoyancy air bag, manufacturing method, special chloroprene rubber adhesive and adhesive
Bicycle lamp capable of being manually locked and installed
Airborne flexible wireless sensing acquisition equipment
Rapid emergency rescue power supply vehicle and use method
Multi-fuel-tank aircraft injection fuel delivery device and fuel supply method thereof
Movable and detachable storage device for working bucket of overhead working truck
Aircraft control surface folding mechanism and aircraft
Bulletproof off-road refueling vehicle control cabin structure
Inverted three-wheeled logistics vehicle chassis and logistics vehicle