Battery temperature adjusting system and vehicle comprising same
Elevator traction force detection equipment and detection method thereof
Pit water level automatic detection and drainage device used for elevator shaft
Automobile hollow bottom cover adopting honeycomb ventilation structure
Connecting piece for end support of automobile engine
Anti-toppling device for stacked materials in carriage
Bilateral independent two-gear electric driving device for tracked vehicle
Method and system for predicting slippage of elevator
Elevator fault detection system and method based on current monitoring and unmanned aerial vehicle
Wear-resistant elevator traction sheave and abrasion loss monitoring device thereof
Double-energy-absorption automobile anti-collision device
Method for measuring length of ship body on inclined slipway
Casting blank transportation equipment for remote transportation
Escalator braking distance detection device and detection method thereof
Elevator lifting rope detection device and tension detection method
Compression detection and video monitoring device for buffer in elevator pit
Helicopter transmission shaft mounting support positioning tool and application method
Underwater vehicle launching and recovering unmanned ship and operation method thereof
Wet-type brake drive axle of small-wheel-track forklift
Suspension system based on single steel plate leaf spring
Parking lot license plate decontamination intelligent identification device