Carbon steel continuous annealed coil, usually refers to the cold-rolled carbon steel coil that has undergone continuous annealing process, is a material that is extremely common in industrial applications. Continuous annealed coil has good surface quality and uniform microstructure, ensuring its excellent mechanical properties and stable quality. In addition, due to the annealing treatment, the internal stress of this steel has been released, reducing the risk of deformation and cracking during processing. Carbon steel continuous annealed coil is a high-quality low-carbon steel material, with good ductility, toughness, and welding performance. It is widely used in automobiles, construction, machinery manufacturing, bridge structures, ships, and various industrial fields.