12797| 26
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怎么判斷是拋光件還是鍍鉻件,? |
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點(diǎn)評(píng)
硬度45~50HRC,材料3Cr13
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點(diǎn)評(píng)
不銹鋼,,拋光件,已確定
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點(diǎn)評(píng)
經(jīng)驗(yàn)不豐富,,所以才大動(dòng)干戈,為的是不走彎路,。,。。
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