SLAT, Winda Sanni; RUNTUWENE, Steven Johny; DJEFRY HOSANG; AGNES WAKKARY; YENNI SIGALINGGING. The Effect of Temperature Variations on Sheet Press Machines on the Hardness and Toughness of PP (Polypropylene) and HDPE (High Density Polyethylene) Materials. International Journal Science and Technology, [S. l.], v. 4, n. 3, p. 118–131, 2025. DOI: 10.56127/ijst.v4i3.2376. Disponível em: https://journal.admi.or.id/index.php/IJST/article/view/2376. Acesso em: 29 jan. 2026.