???????????????
???????????????????
δ??????????纣???罭???羶??????????????????????????????????????????й????Э???????2015????????????????????????????450?????г??????????
??????д???????????????????????г?????????????ε?????????????????????????????????????????????????????
??????????????????
5??1800??8000 32??
8??1800??8000 90??
8??2000??8000 70??
8??2000??8000 32??
10??1800??8000 70??
??????????????????
???????????????????????????壬????????????????????????????????????β????q????????????????????????????í??????????A3q?????????????????16q????????????????12Mnq??12MnVq??15MnVNq??16Mnq??????????????4.5~50?????
?????????????????22*1600*C??q500qd??????????????????
