1.2343化學成分1.2343用途
1.2343電學精分詢問1.2343現在價格行情1.2343最新資訊1.2343服務簡單1.2343電學精分特點請見講解:++++++++++++++++++電學精分電學精分++++++++++++++++++1.2343建筑材料號:1.2343EN品牌:X37CrMoV5-1進行標準單位:ENISO,特種鋼,4957APP鋼C0.33-0.41Si0.8-1.2Mn0.25-0.5,,Pmax0.03S,,max0.02Cr4.8-5.5Mo1.1-1.5V0.3-0.5硬性HB:229超過...
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