5574| 24
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热变形问题 |
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点评
材质是45号钢,调质处理硬度28hrc
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点评
大侠,这个外面有夹紧的,还是向外吗?
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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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