不朽情缘

????????5mm??Q345qE??????? ???

Q345qE??????????? ???????
10??2000??8000+ 32??
12??2000??8000+ 56??
12??2000??8000+ 70??
14??2000??8000+ 35??
14??2000??8000+ 70??

 

Q345qE??????????? ???????
???????????????????????????????壬????????????????????????????????????β????q????????
????????????????????í??????????A3q?????????????????16q????????????????12Mnq??12MnVq??15MnVNq??16Mnq??????????????4.5~50?????

 


????????к??????????

?????????????????????????????С????С???????????????3?·???????????????226.61????
?????????;???????????????????????θ??????и?Э???????????4?????????????????????
????4.69%?????й????????????и???????????????
 


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????????5mm???Q345qE??????????? ???

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