3156| 5
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關于覆銅板剪切質量的問題,求指導! |
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點評
關鍵它是復合板,一個斷面有兩種材質
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Archiver|手機版|小黑屋|機械社區 ( 京ICP備10217105號-1,京ICP證050210號,浙公網安備33038202004372號 )
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