The safety of towercrane is very important during construction, and the internal climbingtowercrane has been widely adopted to high-rise structure construction.
When the overweight steel members are hoisted at high altitude, large internal-climbingtowercrane must be adopted.
超高空吊装超重钢构件，需要大型的内爬式塔式起重机。
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The current widespread use of self climbingtowercrane has three basic ways of installation: concrete block installation fixed foot, large chassis heavy pressure and mounting is walking.