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1Cr5Mo??STFA25??STPA25??STBA25??P5??T5????
12Cr1MoVG??10CrMo910??P22????P11??P91??12Cr2MoWTiB(R102)
A333 Gr6??16MnDG??10MnDG??09DG
A106B/C??A53B??API 5L??ST45.8-III??SA210-C??20#???
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ASTM A335??????????????ASTM A106??????????????
GB8162-2008??????????GB8163-2008???????????????
GB3087-2008???????ˉ?ù??GB9948-2006??????????????
GB5310-2008?????ˉ????????
GB6479-2000????????豸?????????
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