50WCrV8化學成分50WCrV8硬度是多少
50WCrV8電學完分50WCrV8電學完分學習50WCrV8明日市場價50WCrV8解釋50WCrV8食品解釋50WCrV8電學完分等等這些請見解釋:++++++++++++++++++電學完分電學完分++++++++++++++++++50WCrV8材,圓棒,料號:1.2549EN鋼號:50WCrV8執行工作基準:ENISO4957工具軟件鋼C0.45-0.55Si0.7-1Mn0.15-,,0.45Pmax,,0.03Smax0.03Cr0.9-1.2Mo1.7-2.2V0.1-0....
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