1.2549材质单1.2549用途
1.2549原原材料单要了解1.2549昨日价格多少1.2549咨讯1.2549厂品筒介1.2549催化成份特点请见讲述:++++++++++++++++++原原材料单催化成份++++++++++++++++++1.2549原材料号:1.2549EN品种:50WCrV8执行命令规格:ENISO4957的工具钢C0.45-0.55Si0.7-1,圆棒,Mn0.15-0.45,催化成份,Pmax?0.03Smax?0.03Cr0.9-1.2Mo1.7-2.2V0.1-0.2硬性HB:229上面是关于1...
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