因此这种发纹本质上不同于发裂(裂纹)。
Therefore, the hair lines different from the hair crack (crack) in substance.
镜面，蚀刻，发纹。
提出适当控制钢中的残铝量可降低钢坯表面发纹的形成。
It is then suggested that the amount of the residual aluminum be properly control...
提出适当控制钢中的残铝量可降低钢坯表面发纹的形成。
It is then suggested that the amount of the residual aluminum be properly control...
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