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?????????68mm??Q345qD???????????

?????????2017/12/16

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?????????68mm??Q345qD???????????

Q345qD?????????????????? 10??2000??8000+ 32?? 12??2000??8000+ 56?? 12??2000??8000+ 70?? 14??2000??8000+ 35?? 14??2000??8000+ 70?? Q345qD?????????????????? ????????????????????í??????????A3q?????????????????16q????????????????12Mnq??12MnVq??15MnVNq??16Mnq??????????????4.5~50????? Q345qD???????????????????

Q345qD??????????????????
10??2000??8000+ 32??
12??2000??8000+ 56??
12??2000??8000+ 70??
14??2000??8000+ 35??
14??2000??8000+ 70??

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Q345qD???????????????????
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