Two angle irons pressed down: An old craftsman's homemade ingenious leak-proof trick!
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YouTubemianxiwei
Two angle irons pressed down: An old craftsman's homemade ingenious leak-proof trick!
In the video, workers stand on the corrugated steel roof, using a round pipe as a temporary pry bar, wedging it between two angle irons that have been pre-welded into "T-shaped clamps," firmly pressing the two angle irons against the crests of the roof tiles. The entire structure is essentially an "angle iron clamp," with a deliberately left ...
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