Folding device of fixing support for transformer substation inspection
Double-layer photovoltaic synergistic device with offshore positioning function
Anti-corrosion structure of air supply system for air layer drag reduction ship
Hydraulic jack for cover opening and core suspending of transformer
Electric control steering wheel safety protection control method and system
Novel tower crane with construction site dust removal function
Airplane normal overload signal state determination method
Connecting assembly for connecting multifunctional plate to truss cross beam of escalator
Upper cover of wiring harness junction box of new-energy light commercial vehicle
Low-speed automatic driving method, device and equipment and storage medium
Novel hydrogen storage device for hydrogen energy automobile
Reinforcing construction method of novel crane beam with right-angled abrupt change support
Automatic material carrying device and working method thereof