說到螺絲，有一次法國一家高檔機床，突然螺絲斷掉，換了一次又斷掉。最後經過分析發現中國製造的螺絲達不到強度要求

來源: Arigato 於 2022-12-11 10:45:30 [舊帖] [給我悄悄話] 本文已被閱讀：次

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