A single screw pierces the wall, instantly transforming the roof into a stable structure.
0:10
YouTubemianxiwei
A single screw pierces the wall, instantly transforming the roof into a stable structure.
In the video, the worker uses a reinforcement method of "through-wall anchoring + roof welding." He first accurately drills holes on the outside of the parapet wall, inserts extended bolts into the wall, ensuring the stress point is on a more solid part of the brick wall. Then, he precisely aligns the bolts with the square steel on the roof ...
2.2M views4 days ago
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