... system,rapid up and down,efficient,energysaving.This crane truck is highly mobile,Easy Operated,with high efficiency, security ... siteLeg typeH-shape type legs,each leg adjustable for keeping the truck balance,large span leg,overall unit have Good Stabilityoperation ... speed and Hoisting speed adjustable by Hand acceleratorboom craneThis truck can select 8,10,12,15,20 tons craneother accessoriesWith ...