... .CE certificate 2. Used in household,office building,parking lots etc 3. Columns can be shared more ... column uses N+1 type,strongly interchange character,more parking space,more economical.Multi-stage cylinder behinder of ... chain or bridge at the entrance&exit of the lift,convenient for driving in and out.PLC control ... , OEM AcceptedSafety/Quality Approvals EPO hydraulic double car parking lift