SCM-C7052 is a model of large self-telescoping tower crane slewing from the top which is designed and manufactured by our own company.The mechanisms of hoisting,slewing,trolleying,travelling and telescoping adopt  advanced technology. It is an up-to -date designed model with reliable performance.The panel structrued masts is easy to erect and transport.C7050 tower crane has two types for chose: rail-travelling and stationary (or anchored to the building )and the mast section has two type.It's maximum lifting capacity is 25t,the maximum hoisting height of 2.5m mast section can be up to 262.61m and the 2.3m can be up to 195.14m.