Heat treatment process of H13 die steel for precision forged?gear
Guan Changjun 1,Han Ying 2,Xiu Wencui 2,Wang Qi 2,Wu Hua 2
Heat Treatment of Metals . 2016, (7): 91 -94 .  DOI: 10.13251/j.issn.0254-6051.2016.07.022