Authors
R. M. Namus
Mechanical Engineering department, Faculty of Engineering, Wasit University, Kut, Iraq
M. H. Abass
Midland Oil Company, Iraqi Ministry of Oil, Iraq
M. Alali
Department of Materials Engineering, Faculty of Engineering, University of Kufa, Najaf, Iraq
N. K. Zedin
Department of Production Engineering & Metallurgy, University of Technology, Baghdad, Iraq