... pump system,rapid up and down,efficient,energysaving.This crane truck is highly mobile,Easy Operated,with high efficiency, security ... typeH-shape type legs,each leg adjustable for keeping the truck balance,large span leg,overall unit have Good Stabilityoperation ... 2,4,5,6,8tons craneother accessoriesWith reflective marker on Truck body,side and rear protective net,free tools box and instruction ...