Study of the movement of semi-finished products between working shafts Gayrat Bahadirov, Makhmarajab Musirov, Ayder Nabiev and Gulomjon Pirnazarov E3S Web of Conf., 458 (2023) 10009 Published online: 07 December 2023 DOI: 10.1051/e3sconf/202345810009