1454| 21
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鋁件板,安裝孔奇怪的開了一個0.5mm的槽 |
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點評
我覺得有道理,激光割可以從中間穿孔,線切割可以預制孔。別的孔都沒有,就這兩個孔有槽,應該有其用途
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點評
激光切割的,不用啥成本
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