~~GB9948????????``С???20#9948????????-16Mn??????????
~~GB9948????????``
GB9948????????????????????????????????????????ˉ??????????????????????????????????????? ?????Щ??ˉ??????o????1?????????????????????????????????????????????????????????и????????????????????????????????????????
GB9948????????????????????????????????????????ˉ??????????????????????????????????????? ?????Щ??ˉ??????o????1?????????????????????????????????????????????????????????и??????????????????????????????????????????????У???????????????20G??20MnG??25MnG??????????15MoG??20MoG??12CrMoG??15CrMoG??12Cr2MoG??12CrMoVG??12Cr3MoVSiTiB???????????????1Cr18Ni9??1Cr18Ni11Nb?????ˉ??????????????е?????????????????飬??????????????飬??????????????????????
``С???20#9948????????-
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?????????GB9948?????????????????????????????????????????????ˉ???????????????С???????????
??????GB9948??????????????????????????ˉ????????????????????????????????????
16Mn??????????
GB9948??????????????????????????ˉ???????ˉ???????????ˉ???????ˉ????????????????????????
????????-GB9948????????-???????????,????????0510-88268136
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???????????0510-88264321??88223334 ???棺0510-88223334 ?????18921237777
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