The rapid development of the processing industry requires strips with more and more precise sizes, less and less defects and nicer and nicer surfaces, which can be produced primarily by cold rolling. The base material for the Cold Rolling Mill is hot rolled coil with a thickness of 1.0 - 6.0 mm and a width of 800-1540 mm. As cold rolling and subsequent operations require a clean metallic surface, hot rolled coils pass a pickling line where hydrochloric acid treatment is applied in order to remove scale. The percentage of hot rolled and pickled finished products within the product range of ISD DUNAFERR Zrt. is increasing dynamically.