You can adjust the softness and hardness of the spring by turning the handle in the front to make the seat more comfortable due to driver's weight. And equipped with slide rails, seats can be moved back and forward. You can add it to heavy duty trucks, tractors and other Agricultural vehicles. like: Tractor Forklift Mower Excavator Digger Mower Dumper. No air supply required for trucks, wide applicability, mechanical spring hydraulic shock absorber, adjustable at any time. Weight adjustment shock absorbed base with dust cover.
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