Truncated octahedral platinum–nickel–iridium ternary electro-catalyst for oxygen reduction reaction
Vehicle-mounted balloon hydraulic winding and unwinding system
Tail shaft sealing end lubricating oil circulation structure
Steam turbine stator maintenance lifting appliance for power plant
Lens display and touch control process applied to mode 2 vehicle-mounted charger
Working platform hydraulic system and electric aerial work platform
Safety detection valve, floating control system and aerial work platform
Electrically-driven aerial work platform and hydraulic system thereof