... DTPP607N1.Can be used in household or office building parking lot.2.Dual-cylinder lifting system, more stable and reliable3.Cable-equalization ... household or office building parking lot.2.Post can be shared,more economic and steady.3.Dual-cylinder lifting system, more ... .Can be used in household or office building parking lot.2.Dual-cylinder lifting system, more stable and reliable3.Connecting shaft ...