... quality and excellent peformance. XCMG QY12 Truck Crane Main Features:QY12 Truck Crane is the absorption of foreign advanced technology ... of the hydraulic drive, full rotary telescopic boom truck crane,its chassis with factory homegrown XZ12 special chassis ( ... full rotation,single-cylinder anterior branch of the amplitude, the crane, telescopic way synchronization.Machine with hydraulic drive, the body ...