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Pickled carbon steel sheets undergo an acid - cleaning process to remove the scale and oxide layer formed during hot - rolling, resulting in a clean and smooth surface. They are frequently used in the manufacturing of metal products that require subsequent surface treatments, such as electroplating, painting, or powder coating. In the furniture industry, pickled carbon steel sheets are used to produce frames and parts that need a high - quality surface finish for decorative purposes. They are also applied in the automotive and appliance industries for components that need to be painted or coated to enhance corrosion resistance and appearance. Moreover, pickled carbon steel sheets find applications in the production of metal artworks, decorative items, and general - purpose metal products where a clean surface is essential for further processing and aesthetic requirements.