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Grinding ball mill operates with mineral ore at plant for copper and gold concentrate. Industry Concentration factory.
Vector farmers market icon set. Modern agriculture logo symbol collection. Organic farming pictogram illustration in line style. Eco, bio, natural signs for local food shop, healthy fresh products
Blast furnace smelting liquid steel in steel mills
Cataract Covered Bridge crosses Owen County, Indiana's Mill Creek just upstream from Upper Cataract Falls.
Closeup CNC milling machine during operation. Produced cutting metal parts, banner background of industry heavy factory.

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