Rizaev Abdumalik Nabiyevich and Saipov Sarvar Ikromovich 2021. TYPES OF WEAR OF THE WHEEL-RAIL “TRIBO-CONTACT”. International Engineering Journal For Research & Development. 6, ICDSIIL (Feb. 2021), 2. DOI:https://doi.org/10.17605/OSF.IO/26XF8.