1.2344化學成分1.2344硬度是多少
1.2344催化含量認識1.2344令天售價1.2344新聞資訊1.2344食品介簡1.2344催化含量等一等請見了解:++++++++++++++++++催化含量催化含量++++++++++++++++++1.2344素材號:1.2344EN鋼材牌號:X40CrMoV5-1下達規范:ENISO4957生產工具鋼◎催化含量:C,熱凈化處理,0.35-0.42Si0.8-1.2Mn0.25-0.5Pmax0.03Smax0.02Cr4.8,,-5.5Mo1.2-1.5V0.85-1.15硬性HB...
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