Review Article: Comparison of three types of polymers Delrin , Polyester and Nylon. Journal of Madenat Alelem, [S. l.], v. 16, n. 1, p. 96–100, 2024. Disponível em: https://journal.mauc.edu.iq/index.php/JMAUC/article/view/515. Acesso em: 25 feb. 2026.