I decided to make, and for some reason upload this video about the futuristic car from the 1980's coming alive from the Tesla X and the Falcon doors on this vehicle.
Needle valve
Hydraulic needle valves can be a low, medium, or high pressure needle valves, they all work under the same principles of restricting flow to the desire amount depending on your requirements. Many manufacturers may build their own system on how a needle valve might work internally. Here is one example on how a needle valve would work.