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零件選材及處理,,請(qǐng)教 |
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點(diǎn)評(píng)
發(fā)黑是使零件表面發(fā)生氧化,,生成一層氧化物,,不是噴漆,不會(huì)脫落的
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小黑屋|手機(jī)版|Archiver|機(jī)械社區(qū) ( 京ICP備10217105號(hào)-1,,京ICP證050210號(hào),,浙公網(wǎng)安備33038202004372號(hào) )
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