5441| 2
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請問各位大俠,440不銹鋼滲氮處理后,硬度能達(dá)到多少 |
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小黑屋|手機(jī)版|Archiver|機(jī)械社區(qū) ( 京ICP備10217105號-1,京ICP證050210號,浙公網(wǎng)安備33038202004372號 )
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