Large-tonnage freight elevator car structure and using method thereof
Microwave directional radiation device and environmental pollution remediation system
Transport vehicle and compressed air treatment system thereof
Railway vehicle-mounted vacuum self-suction type environment-friendly toilet comprehensive system
Intelligent urban desilting and solidifying system and method
Unmanned ship for tracking and collecting floating oil on water surface
Pesticide adding device for unmanned aerial vehicle pesticide box
Information screen and traffic light synchronization control device
Modified epoxidized rubber as well as preparation method and application thereof
Multi-purpose pure electric intelligent dust removal vehicle
Transport vehicle with detachable collision head seat
Brominated butyl rubber composition for sealing material and preparation method thereof
High-precision excess material detection device of plant protection unmanned aerial vehicle