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Production. Pipe fittings. The V-belt drive of the world's largest mac...
Public domain photograph of 1930s America, free to use, no copyright restrictions image - Picryl description
Production. Pipe fittings. Forging shop crew of a Midwest plant serve ...
Picryl description: Public domain image of an industrial building, factory, workshop, workers, 19th-20th century, free to use, no copyright restrictions.
Production. Pipe fittings. The world's largest machine of its kind, a ...
Public domain photograph of 1930s-1940s industrial development, no copyright restrictions image - Picryl description
A husky upsetter and a forge that was turning out automobile parts a s...
Picryl description: Public domain image of an industrial building, factory, workshop, workers, 20th century, free to use, no copyright restrictions.