3??19?????18*1600*C???·?????÷?????????????????
??·????????????????????????????????????????????????????????????????ú??????β????q????????<BR>????????????????????????A3q??????????????16q????????????????12Mnq??12MnVq??15MnVNq??16Mnq????????????4.5~50?????<br><br>?????·?????????????????<br><br>??·????????????????????????8*2000*9000 21??<BR>10*2100*9000 32??<BR>12*??
??·????????????????????????
????????????????????????????????????????ú??????β????q????????
????????????????????????A3q??????????????16q????????????????12Mnq??12MnVq??15MnVNq??16Mnq????????????4.5~50?????
?????·?????????????????
??·????????????????????????
8*2000*9000 21??
10*2100*9000 32??
12*2100*8000 84??
14*2100*8000 30??
16*2000*9000 42??
18*2200*9000 90??
3??19?????18*1600*C???·????????????????????????????
