ZHANG, Wan; FU, Xiaoyan. Theory of Magnetic Fluid Sealing in Roller Cone Bits. Academic Journal of Science and Technology, [S. l.], v. 16, n. 3, p. 23–26, 2025. DOI: 10.54097/gnrf9340. Disponível em: https://drpress.org/ojs/index.php/ajst/article/view/31822. Acesso em: 24 jun. 2026.