2600| 5
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加工成本和便捷性問題 |
點評
打穿的話,不需要控制鉆底孔深度,方便快捷。通孔,無論鉆孔,還是攻絲,都優(yōu)于盲孔。
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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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