Knuckle Boom Crane, Telescopic Boom Crane, Marine Crane manufacturer / supplier in China, offering 4 Ton China Crane Manipulator Bob-Lift Hydraulic Knuckle Boom Truck Mounted Crane, Bob-Lift Powerful Manipulator 4 Ton Truck Mounted Mobile Crane Truck with Crane Telescopic Knuckle Boom Crane Truck, 800kg Pickup Truck Knuckle Boom Crane with Hydraulic Crane Winches & DC12V Electric Power Pack and so on.