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奧氏體不銹鋼真的很難鉆嗎? |
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點評
普通手電鉆轉(zhuǎn)速都高呢
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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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