18349| 14
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請問在鋁件上鉆孔要用什么鉆頭 |
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點(diǎn)評
批量大,可做個(gè)鉆模,上個(gè)鉆套,一個(gè)平鉆頭也可以。
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點(diǎn)評
孔打淺點(diǎn),再用平頭鉆劃到深度就可以了
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