Construction project with drones - GIF

Construction project with drones.

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Previously:

Agricultural drones in China - GIF
Clearing snow covered electrical lines with drones - GIF
Drones assisting construction - GIF
Firefighting drones in action - GIF

The times they are a changin'.

I'm seeing too many FAKE videos lately, like tons of college art students dumping their effort on the internet. The physics of that angle iron take off, just looks too good, and the safety of all these drones would not be a job sight even in China. And that iron looks way too heavy for that small helicopter drone.
Me thinks it's fake.