1.2344化學成分1.2344硬度是多少
1.2344電學好分知曉1.2344今早價目1.2344信息1.2344貨品詳細推薦1.2344電學好分等情況請見推薦:++++++++++++++++++電學好分電學好分++++++++++++++++++1.2344原料號:1.2344EN鋼號:X40CrMoV5-1實施標:ENISO4957手段鋼◎電學好分:C,熱辦理,0.35-0.42Si0.8-1.2Mn0.25-0.5Pmax0.03Smax0.02Cr4.8,,-5.5Mo1.2-1.5V0.85-1.15對抗強度HB...
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