Enhancing Operational Efficiency : A Case Study on Six Sigma Implementation in the Casting Industry. Int. J. Sci. Res. Mech. Mater. Eng [Internet]. 2024 Nov. 30 [cited 2024 Dec. 22];8(6):17-25. Available from: https://ijsrmme.com/index.php/home/article/view/IJSRMME24863