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Cold-Formed Steel Specification
los ntawm Admin nyob rau hauv 2023-07-22
Cov hlau tsim yog hais txog cov khoom hlau tiav ntawm ntau cov duab sib dhos ua ke los ntawm cov hlau phaj lossis sawb hlau hauv lub xeev txias.Cold-formed steel yog ib qho kev lag luam nyias-section nyias-walled steel, tseem hu ua steel-refrigerated curved los yog txias-tsim profiles.Col...
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