sunbo6804 發(fā)表于 2011-9-20 09:56 5 M9 X" q. A% G9 C3 \是用Cr12或Cr12MoV?
sunbo6804 發(fā)表于 2011-9-20 13:07 / X, J) Y8 Y. Y) z/ s1 |- c, g6 M3 w 是冷軋還是熱軋,還是冷拉?