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Nucor has 13 bar mills that produce concrete reinforcing bars, hot-rolled bars, rod, light shapes, structural angles, structural channels and guardrails in carbon and alloy steel. These products have a wide usage serving primarily the agricultural, automotive, construction, energy, furniture, machinery, metal building, railroad, recreational equipment, shipbuilding, heavy truck and trailer market segments. Steel bar products are used as reinforcement in concrete or masonry structures. The bar can be fabricated (i.e., cut, bent, or otherwise modified) by a fabricator or shipped directly to a job site.