... pump system,rapid up and down,efficient,energysaving.This crane truck is highly mobile,Easy Operated,with high efficiency, ... and Hoisting speed adjustable by Hand acceleratorboom craneThis truck can select 8,10,12,15,20 tons craneother accessoriesWith ... on Truck body,side and rear protective net,free tools and instruction bookoptionalthis truck can select knuckle boom crane 8*4 TRUCK mounted CRANE