1.2344化學成分1.2344硬度是多少
1.2344電電學好分掌握1.2344近幾日價目1.2344資訊新聞1.2344護膚品簡潔1.2344電電學好分特點請見介紹書:++++++++++++++++++電電學好分電電學好分++++++++++++++++++1.2344板材號:1.2344EN鋼材牌號:X40CrMoV5-1實行標準規范:ENISO4957專用工具鋼◎電電學好分:C,熱處置,0.35-0.42Si0.8-1.2Mn0.25-0.5Pmax0.03Smax0.02Cr4.8,,-5.5Mo1.2-1.5V0.85-1.15密度HB...
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