... pump system,rapid up and down,efficient,energysaving.This crane truck is highly mobile,Easy Operated,with high efficiency, security ... -shape type legs,each leg adjustable for keeping the truck balance,large span leg,overall unit have Good Stabilityoperation ... ±360 degree ,continuous gyration, rotating speed and Hoisting speed adjustable by Hand acceleratorboom craneThis truck can select 8,10,12,15,20 ...