Enhancing Operational Efficiency : A Case Study on Six Sigma Implementation in the Casting Industry. International Journal of Scientific Research in Mechanical and Materials Engineering, [S. l.], v. 8, n. 6, p. 17–25, 2024. DOI: 10.32628/IJSRMME. Disponível em: https://ijsrmme.com/index.php/home/article/view/IJSRMME24863.. Acesso em: 22 dec. 2024.