Tower crane price: 1.Fashionable design,easy to operate 2.High quality,competitive price 3.ISO9001:2000 ,CE QTZ40 tower crane1 ... enhance the life of the slewing gear.2.The tower head use the angle of buckle ,enhance the ... safety .3.The climbing frame is used design-line treatment , easily to install and disassemb. ... /min380V/50HzPower Capacity24.9 2012 Bona QTZ40 Tower Crane Price