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Smelter Operators in Protective Fireproof Suits and Industrial Employees Working at a Modern Metal Foundry. Foundrymen Pouring Hot Melted Iron Ore into Casting Forms, Producing Equipment
Close-up firewood is burning in a traditional italian pizza oven. Hot coals in the oven in an old pizzeria.
cokes oven, blast furnace, metal production. Industrial facility, chimney, smoke stacks. Aerial view.
An over the shoulder view of an HVAC repair man inspecting the inner workings of a household basement hot water furnace with a flashlight, preparing for winter heating needs.

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