Yan, Ying, Yujia Sun, Bo Li, and Ping Zhou. “An Experimental Study of PMMA Precision Cryogenic Micro-Milling”. Biomaterials and Polymers Horizon 1, no. 1 (October 20, 2021): 15–21. Accessed November 23, 2024. https://ojs.bdtopten.com/eaapublishing/index.php/bph/article/view/129.