50WCrV8化學成分50WCrV8硬度是多少
50WCrV8無機生物學精分50WCrV8無機生物學精分介召50WCrV8近期價錢50WCrV8介召50WCrV8類產品簡紹50WCrV8無機生物學精分……請見介召:++++++++++++++++++無機生物學精分無機生物學精分++++++++++++++++++50WCrV8材,圓棒,料號:1.2549EN類型:50WCrV8執行程序規定:ENISO4957用具鋼C0.45-0.55Si0.7-1Mn0.15-,,0.45Pmax,,0.03Smax0.03Cr0.9-1.2Mo1.7-2.2V0.1-0....
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