Steel bars are long, solid pieces of steel that are commonly used in construction and manufacturing. They come in various shapes, such as round, square, and rectangular, and are known for their strength and durability. Steel bars are often used to reinforce concrete structures, providing additional support and stability. These bars are produced through a process called steelmaking, where raw materials like iron ore and scrap metal are melted and shaped. Steel bars can be found in many applications, including bridges, buildings, and automobiles, making them essential components in modern infrastructure and industry.