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KOENIG (TRADUCTORA), I. Extrusión en frío. Informador Técnico, [S. l.], v. 42, p. 9–13, 1990. DOI: 10.23850/22565035.1209. Disponível em: https://revistas.sena.edu.co/index.php/inf_tec/article/view/1209. Acesso em: 24 mar. 2026.