Study on signs of defects in the image of the surface of flat-rolled productsOksana Logunova, Palvan Kalandarov, Evgeny Garbar, Makhmud Abdullaev, Nodira Alimova, Oybek Matchanov and Khusniddin AbdullaevE3S Web Conf., 304 (2021) 02013DOI: https://doi.org/10.1051/e3sconf/202130402013