50WCrV8化學成分50WCrV8硬度是多少
50WCrV8電學完分50WCrV8電學完分分析50WCrV8昨日參考價格50WCrV8新聞資訊50WCrV8護膚品簡潔50WCrV8電學完分……請見說:++++++++++++++++++電學完分電學完分++++++++++++++++++50WCrV8材,圓棒,料號:1.2549EN品種:50WCrV8實施條件: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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