9626| 7
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哪種鋼材或如何使鋼材的硬度有HRC52度,并長年浸水不銹--請教 |
316不銹鋼可以淬火嗎
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用日產(chǎn)SUS440系列
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Archiver|手機版|小黑屋|機械社區(qū) ( 京ICP備10217105號-1,京ICP證050210號,浙公網(wǎng)安備33038202004372號 )
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