sunbo6804 發(fā)表于 2011-9-20 09:56 : d. r* g$ g9 s# q% d7 R, ~是用Cr12或Cr12MoV?
sunbo6804 發(fā)表于 2011-9-20 13:07 1 J$ f9 @8 E0 i2 Y( \6 O是冷軋還是熱軋,還是冷拉?