7913| 19
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外圓磨床磨45#調(diào)質(zhì)軸用什么材質(zhì)的砂輪 |
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點(diǎn)評(píng)
粒度60#-100#
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點(diǎn)評(píng)
不分粗精磨,車(chē)加工留50絲磨量上磨床直接磨成品
評(píng)分
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點(diǎn)評(píng)
碳化硅的吧?
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