Muhamed, Jamal Hussien, Muhsin Jabur Jweeg, and Ali Hassan Saleh. “The Effect of Area Reduction of Forward Die on the Combined Forward- Backward Extrusion Process”. Al-Nahrain Journal for Engineering Sciences 12, no. 2 (March 20, 2009): 108–121. Accessed November 24, 2024. https://nahje.com/index.php/main/article/view/567.