Crank arm hydraulic aerial working platforms Product description:     The product is the upgrade product of vertical forklift. It use diesel-powered or DC battery.Slef-propelled,fully automatic lift legs can be rotated 360°, it can overhang across the marrier.It can be lifeed to a certain position and improve the efficiency. It is widely used in municipal,electricity,street lighting ,residential property,garden,workshop,and other companies within the high-altitude,etc.