2468| 3
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卷銷如何處理使卷筒里面的銹出,,并且不傷表面 |
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點評
確實比較難,估計是成品后防銹沒做好,。
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小黑屋|手機版|Archiver|機械社區(qū) ( 京ICP備10217105號-1,京ICP證050210號,,浙公網安備33038202004372號 )
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