1??18????16mnq?纣?????÷?????????????????????
?纣????????????????????????8??2000??8000 42??<BR>8??2000??8000 21??<BR>10??1800??8000 32??<BR>10??1800??8000 80??<BR>10??2000??8000 21??<BR>10??2000??8000 52??<br><br>?纣???????????????????????????????????????????????????壬????????????????????????????????????β????q????????????????????????????í??????????A3q???????
?纣????????????????????????
8??2000??8000 42??
8??2000??8000 21??
10??1800??8000 32??
10??1800??8000 80??
10??2000??8000 21??
10??2000??8000 52??
?纣????????????????????????
???????????????????????????壬????????????????????????????????????β????q????????????????????????????í??????????A3q?????????????????16q????????????????12Mnq??12MnVq??15MnVNq??16Mnq??????????????4.5~50?????
????????
????????????????????壬??????е????????????и??????????????и?? ??????1-150MM ?????1500-2200MM ????????????????д????????????????????????????????·?????????????鼰???????????????????? ???????.???????.... ???????У?????????? ????????????????????????????????????ж?????????????????????????塣SB????????徭?????κ????????????????????????????????????
1??18????16mnq?纣????????????????????????????????
