Chainawakul A, Sangkas T, Kamthai S, Manokruang S. Reducing Sink Mark Defect of Cup Plastic Injection by Biodegradable Material with an Injection Rate. RMUTL.Eng.J. [internet]. 2025 Apr. 24 [cited 2025 Dec. 11];10(1):27-34. available from: https://ph01.tci-thaijo.org/index.php/RMUTLEngJ/article/view/258288