4928| 15
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不銹鋼板加工幾個孔之后,,出現(xiàn)黑色印痕 |
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點評
鈍化處理
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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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