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Due to the increasing price of steel and construction materials, many projects have been converted from two layers of steel to only one layer.
With 1 layer of steel but the work is still guaranteed not to use, not to bend, when construction we need to pay attention and ensure good structural engineering.
This is a construction work with a d10 steel layer with an aperture of 4.5x17, invite you to watch and give comments, reviews.
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