... .package: wooden case package 4.steady to lift and down electric self-propelled boom lift 1.Products advantages:Self propelled Scissor Lifts does ... :The chargeable battery provides the power to raise up the lift platforms.Working heights rangs from 4m,6m,8m,9m,10m ... /railway stations, hotels,airports, gas station and aerial pipeline. HF electric hydraulic self-propelled scissor lift,elevating platform