If you've ever walked by a building and wondered how it’s put together, chances are, sheet metal has something to do with it.

Large manufacturers who use vast tonnages of steel products, such as the automobile makers, switch-gear producers, and other sheet metal fabricators, may order their steel to their own specifications ...

Large manufacturers who use vast tonnages of steel products such as the automobile manufacturers, appliance industry, switchgear producers, and other sheet-metal fabricators may order their steel to ...