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65钢拉拔笔尖状断裂分析及工艺改进
杨文涛,尚巍巍
Analysis of pen fracture in drawing of 65 grade steel and wire rod production process improvement
YANG Wen- tao, SHANG Wei- wei
. 2015, (5): 78 -80 .  DOI: 10.13228/j.boyuan.issn1003-9996.20140274