Steel coils are large rolls of steel that are produced during the manufacturing process. They are made by rolling molten steel into thin sheets, which are then wound into coils for easier handling and transportation. These coils can vary in thickness and width, depending on their intended use in various industries. Steel coils are commonly used in construction, automotive, and appliance manufacturing. They can be further processed into different products, such as steel sheets, steel strips, and steel plates. The versatility of steel coils makes them essential in producing a wide range of items, from buildings to vehicles.