Boom tower crane is mounted on the upper rotating tall tower - TopicsExpress



          

Boom tower crane is mounted on the upper rotating tall tower crane, which working space is mainly used for housing construction in the vertical and horizontal transport of materials and construction of the mounting member. The main institutions tower crane hoisting mechanism,hoist gantry crane luffing mechanism, trolley traction mechanism, slewing mechanism and so on. steelcrane.blogspot/2013/08/promote-development-of-tower-crane-drive.html
Posted on: Thu, 15 Aug 2013 06:58:49 +0000

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