... 4people/set chair 3.Penumatic/hydraulic/electronics Specifications:Motion chair in control system is classified as below:Pneumatic control systemmotion ... or neck.√Movement: Up and down, left and right,tumbling action front and back, simulation pitch, roll, lift movement, used ... suspended, fall, up to see, rise etc.√Vibration: Built-in seat cushion inside, the function can push upand down, realize ...