Soon, the mobile cranes can not reach the top of the wings anymore.
I expect that concrete pumps will also be installed there, in near future.
As I remember well, BD had 3 pumps on the core, and 1 on each wing.
My biggest curiosity however, is how the cranes will be aranged, esp. when the building reaches 800 m or so.
And how the spire is built, and the cranes will be dismanteled.
I have to be patient for a few years...
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