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哪位高手知道18CrNiMo7-6以及17CrNiMo6的机械性能呀！ |
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小黑屋|手机版|Archiver|机械社区 ( 京ICP备10217105号-1，京ICP证050210号，浙公网安备33038202004372号 )
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发表于 2010-8-13 11:19:45