Article, Influence of Copper Electrode Material on Surface Quality in EDM Drilling of Heat-Treated C45 Steel: Surface Quality in EDM Drilling of Heat-Treated C45 Steel. Journal of Nanomaterials and Applications (JNA), [S. l.], v. 1, n. 1, p. 33–42, 2025. DOI: 10.65273/hhit.jna.2025.1.1.33-42. Disponível em: https://jna.com.vn/index.php/home/article/view/8. Acesso em: 4 dec. 2025.