THE COMPOSITION OF STRUCTURAL STEEL USED IN THE REPUBLIC OF KAZAKHSTAN AND THE RELATIONSHIP WITH HARDNESS CHARACTERISTICS. International Journal of Geomate, [S. l.], v. 27, n. 123, p. 11–19, 2024. Disponível em: https://geomatejournal.com/geomate/article/view/4403. Acesso em: 10 oct. 2026.