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Research Progress of Desulphurization Methods for Scrap Lead Paste. International Journal of Chemistry and Materials Research, [S. l.], v. 3, n. 3, p. 58–64, 2015. DOI: 10.18488/journal.64/2015.3.3/64.3.58.64. Disponível em: https://archive.conscientiabeam.com/index.php/64/article/view/1849. Acesso em: 21 sep. 2026.