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??????????????и??????????????66??
16Mnq??????????????????
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?????????????MPa 345-305 ????????????bMPa 510-490???????5%??21??
Q345QC???????????Q345QC??????
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??????????????????????????????????????е?????????????
16Mnq???????????????????
?и?Э????????????????????1~2?????????????????????????47???????2013?????????????51
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10??2000??8000+ 32??
12??2000??8000+ 56??
12??2000??8000+ 70??
14??2000??8000+ 35??
14??2000??8000+ 70??
???????? ???????лл ?? ????? ?????16Mnq???????????
??????I??ú????40?????16Mnq??????????????????+??+??
??????? /Pro
??????? /CONTACT
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COPYRIGHT ?????????????????? ????????ICP??2021038300?? ???????????????