2918| 3
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硬度圓鋼---請(qǐng)教 |
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有沒有哪個(gè)廠家提供1045(國(guó)內(nèi))和1215(國(guó)外)材料
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Archiver|手機(jī)版|小黑屋|機(jī)械社區(qū) ( 京ICP備10217105號(hào)-1,京ICP證050210號(hào),浙公網(wǎng)安備33038202004372號(hào) )
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