Coloring of master brake cover accessories (CNC products) using the anodizing method with natural mangosteen peel dye. Proceeding SNTTM BKS-TM Indonesia, [S. l.], v. 23, n. 1, p. 73–79, 2026. DOI: 10.71452/5kpe3649. Disponível em: https://snttm.bkstm.org/index.php/SNTTM/article/view/70.. Acesso em: 2 may. 2026.