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copper, chemical element used in industry and electrical systems, such as wires that conduct electricity. - Foto, immagini

Copper, chemical element used in industry and electrical systems, such as wires that conduct electricity.

Gold nugget grains on a wooden table. - Foto, immagini

Gold nugget grains on a wooden table.

Gold nuggets on black background. - Foto, immagini

Gold nuggets isolated on black background.

Manganese in the raw state. Manganese stone isolated on black background. Mineral extraction of heavy metal. - Foto, immagini

Manganese in the raw state. Manganese stone isolated on black background. Mineral extraction of heavy metal.

Gold Metal Texture Macro shot - Foto, immagini

Gold Metal Texture Macro shot

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