San Francisco : Architect and Engineer, Inc · leaf 254
rust should thegalvanizing become damaged in use.And its easier to work, uniform inductility, gage, size . . . makes pos-sible true bends, tight seams, neatjoints. Specify U-S-S GalvanizedCopper Steel Sheets on your next job. . if you want ducts and housings tolast the life of the building in…
Architecture · Building
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