SUITABILITY OF RICE HUSK ASH MOULD ADDITIVE FOR THIN WALL DUCTILE IRON GRAPHITE CHARACTERISTICS. Nigerian Journal of Technology, [S. l.], v. 37, n. 4, p. 989–998, 2018. DOI: 10.4314/njt.374.1862. Disponível em: https://nijotech.com/index.php/nijotech/article/view/1862. Acesso em: 17 apr. 2026.