提升井塔
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hoisting tower reinforcing 井塔加固
tower crane hoisting mechanism 塔机起升机构
tower head hoisting and installation 塔头吊装
Under the condition that construction units have been universally equiped with truck crane, hoisting tower equipment using truck crane is an inevitable trend.
在施工单位普遍配备汽车吊的情况下,塔类设备使用汽车吊吊装是必然趋势。
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