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Q345qE?????????????????? ?????????????????????????????? ????Q245R??Q345R??Q370R??16MnDR??15CrMoR??09MnNiDR??12MnNiVR??14Cr1MoR??12Cr2Mo1R 12Cr1MoVR??13MnNiMoR??18MnMoNbR??15MnNiDR??20MnMoR?????????????? ???P265GH??P295GH??P275NH??P355GH??P355NH??P355NL??P460NH??? ????SA515Gr60/65/70??SA516Gr60/65/70??SA285GrC??A537CL??SA6??

Q345qE??????????????????
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12Cr1MoVR??13MnNiMoR??18MnMoNbR??15MnNiDR??20MnMoR??????????????
???P265GH??P295GH??P275NH??P355GH??P355NH??P355NL??P460NH???
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SA302GrC/B??SA387Gr11/12/22???
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?±?19Mn6??15Mo3???
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