IBRAHEEM KHALAF, H. EFFECT OF ALUMINUM CONTENT ON THE HARDNESS AND MACHINABILITY OF BRASS ALLOY USED IN OXYGEN CYLINDER VALVE. THE IRAQI JOURNAL FOR MECHANICAL AND MATERIALS ENGINEERING, [S. l.], v. 21, n. 3, p. 213–220, 2021. Disponível em: https://iqjfmme.com/index.php/jmme/article/view/562. Acesso em: 28 nov. 2021.