Pit-free traction type platform elevator car structure
Multi-degree-of-freedom mobile phased array ultrasonic automatic detection device
Tail door inner plate forming method and tail door inner plate
Displacement detection device, linear motor, electromagnetic shock absorber and vehicle
Preparation method of synthetic leather with patterns, artificial leather and application thereof
Commercial vehicle single-row cab floor, manufacturing method and commercial vehicle
Intelligent monitoring system based on Beidou fusion positioning
Unpowered self-stabilization water surface hydrological instrument
Resistance friction composite heating metal repairing device
Wagon balance weighing method and system and storage medium
Robot and method for laying and recovering ground node type geophone
Commercial vehicle door structure and vehicle door manufacturing process