?????????????????7.0*1.5*6??q620qe???????????????
???????????????<br><br>??????????????????6??1500??8000 21??<BR>6??1500??8000 42??<BR>6??1500??8000 35??<BR>6??1500??8000 21??<BR>8??2000??8000 64??<br><br>?????????????????????????????????????????????????壬????????????????????????????????????β????q????????<BR>????????????????????í??????????A3q?????????????????1??
???????????????
??????????????????
6??1500??8000 21??
6??1500??8000 42??
6??1500??8000 35??
6??1500??8000 21??
8??2000??8000 64??
??????????????????
???????????????????????????????壬????????????????????????????????????β????q????????
????????????????????í??????????A3q?????????????????16q????????????????12Mnq??12MnVq??15MnVNq??16Mnq??????????????4.5~50?????
?????????????????7.0*1.5*6??q620qe???????????????????
