12??19????????????12*1800*C?????????????????
??????????????????????????????????????????????????????壬????????????????????????????????????β????q????????<BR>????????????????????í??????????A3q?????????????????16q????????????????12Mnq??12MnVq??15MnVNq??16Mnq??????????????4.5~50?????<br><br>???????????????????<br><br>???????????????????????6??1500????
???????????????????????
???????????????????????????????壬????????????????????????????????????β????q????????
????????????????????í??????????A3q?????????????????16q????????????????12Mnq??12MnVq??15MnVNq??16Mnq??????????????4.5~50?????
???????????????????
???????????????????????
6??1500??8000 21??
6??1500??8000 42??
6??1500??8000 35??
6??1500??8000 21??
8??2000??8000 64??
12??19????????????12*1800*C??????????????????????
