... Description Tower Crane(QTZ31.5~315) This series of tower cranes, ranging from QTZ31.5 to QTZ315 has a horizontal ... in shape. Equipped with all necessary safety devices, these cranes show a good speed-control capacity, satisfactory operating stability and ... Cross Beam Inclined Stay Bar Without Ballast;5.Traveling Type (Mobile) Tower cranes;6.Inside Climbing.Tower crane model:ModelQTZ315(7035) QTZ200 ...