50WCrV8化學成分50WCrV8硬度是多少
50WCrV8生物學好分50WCrV8生物學好分理解50WCrV8下面報價為50WCrV8資訊新聞50WCrV8好產品介簡50WCrV8生物學好分之類請見說:++++++++++++++++++生物學好分生物學好分++++++++++++++++++50WCrV8材,圓棒,料號:1.2549EN品牌:50WCrV8審理規格:ENISO4957專用工具鋼C0.45-0.55Si0.7-1Mn0.15-,,0.45Pmax,,0.03Smax0.03Cr0.9-1.2Mo1.7-2.2V0.1-0....
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