LI Hong-song, PAN Zhen-peng, LI Zhun, et al. The Group Technology of Forging Die for Engine Valve Based on High-frequency Narrow-Pulse Current Electrolytic Machining[J]. 2003, 20(4): 31-34.
LI Hong-song, PAN Zhen-peng, LI Zhun, et al. The Group Technology of Forging Die for Engine Valve Based on High-frequency Narrow-Pulse Current Electrolytic Machining[J]. 2003, 20(4): 31-34.DOI: