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The TIELISHI-brand QTZ series of tower cranes, ranging from QTZ20 to QTZ315, is among Hongda Groups leading products. With their working radiuses varying from 30m to 70m, QTZ tower cranes are famous for their large operating ranges, varied working methods and wide uses. This series of tower cranes has a horizontal jib frame, a jib-trolley radius-changing mechanism and a hydraulic self-raising mechanism. It is original in design, reliable in operation and satisfactory in shape. Equipped with all necessary safety devices, these cranes show a good speed-control capacity, satisfactory operating stability and high work efficiency. They can be widely used for the construction of high-rise hotels, residential buildings, high-rise industrial buildings, large-span factory buildings and tower-like buildings like tall chimneys. The TIELISHI tower cranes have been awarded many honors like SHANDONG FAMOUS BRAND. QUALITY FIRST is not only a slogan; it is deeply rooted in the hearts of Hongda people. We also provide excellent after-sale service which will get rid of all your worries in the purchase of our products.