Application of ultrasonic quenching in heat treatment of 30CrMnTi steel trunnion
Nan Hongyan1，Ma Biao2，Zheng Xiping3，Zhang Xiaowei4
Heat Treatment of Metals . 2015, (2): 159 -162 .  DOI: 10.13251/j.issn.0254-6051.2015.02.035

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