50WCrV8化學成分50WCrV8硬度是多少
50WCrV8催化藥劑學物質50WCrV8催化藥劑學物質知曉50WCrV8令天價錢50WCrV8訊息50WCrV8企業產品百度百科50WCrV8催化藥劑學物質等一等請見價紹:++++++++++++++++++催化藥劑學物質催化藥劑學物質++++++++++++++++++50WCrV8材,圓棒,料號:1.2549EN鋼號:50WCrV8執行力規范標準: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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