ALIFF ABDUL RAHMAN; AZNIZAM AHMAD. A Comparative Study of NAK80 Steel and Beryllium Copper Moulds for Injection Moulding of Polypropylene Material. Progress in Engineering Application and Technology, [S. l.], v. 5, n. 1, p. 387–392, 2024. Disponível em: https://penerbit.uthm.edu.my/periodicals/index.php/peat/article/view/14578.. Acesso em: 2 jul. 2024.