综合考虑，低拉速有益于普碳钢方坯内部质量的提高。

Comprehensive consideration, low drawing speed is good to the improvement of internal quality.

youdao

综合考虑，低拉速有益于普碳钢方坯内部质量的提高。

Comprehensive consideration, low drawing speed is good to the improvement of internal quality.

youdao