Sheet metal drafting.
By: Betterley, Melvin L.
Material type:
BookPublisher: New York : McGraw-Hill, c1961Subject(s): Sheet-metal work | Mechanical drawingDDC classification: 744.422
BookPublisher: New York : McGraw-Hill, c1961Subject(s): Sheet-metal work | Mechanical drawingDDC classification: 744.422
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