... lifting system, more stable and reliable3.Cable-equalization system4.Low post,chain-driven system, faster lifting and lowering speed.5.Single ... be used in household or office building parking lot.2.Post can be shared,more economic and steady.3.Dual-cylinder ... stable and reliable3.Connecting shaft to ensure synchronous balancing4.Low post , faster lifting and lowering speed.5.Adjustable platform angle, ...