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Fiberglass manufacture, Owens-Corning, Toledo, Ohio. Intense heat is needed to melt the inorganic ingredients of the batch from which fiberglass insulating wool is manufactured. Twenty-four hours a day, seven days a week, this gas-fired furnace maintains the temperatures required in the process

Fiberglass manufacture, Owens-Corning, Toledo, Ohio. Intense heat is n...

Public domain image of an industrial building, factory, structure, works, 19th-20th century industrial revolution, free to use, no copyright restrictions - Picryl description

Owens-Corning Fiberglas Corp., Toledo, Ohio. Intense heat is needed to melt the inorganic ingredients of the batch from which Fiberglas insulation wool is manufactured. Twenty-four hours a day, seven days a week, this gas-fired furnace maintains the temperature required in the process

Owens-Corning Fiberglas Corp., Toledo, Ohio. Intense heat is needed to...

Picryl description: Public domain image of a historical building, landmark architecture, world heritage, free to use, no copyright restrictions.