300M钢回火酸浸蚀检查标准试块的研究
冯玉书, 张伟, 赵振业, 叶武俊
The Study on the Standard Sample in Etch Inspection of Tempered 300M Steel
Feng Yushu, Zhang Wei, Zhao Zhenye, Ye Wujun
材料工程 . 1994, (2): 27 -29 .