超高空吊装超重钢构件，需要大型的内爬式塔式起重机。

When the overweight steel members are hoisted at high altitude, large internal-climbing tower crane must be adopted.

youdao

超高空吊装超重钢构件，需要大型的内爬式塔式起重机。

When the overweight steel members are hoisted at high altitude, large internal-climbing tower crane must be adopted.

youdao