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螺栓問題求教 |
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點(diǎn)評(píng)
請(qǐng)問:表面硬度42~48HRC 相當(dāng)于維式硬度多少度?
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點(diǎn)評(píng)
HRC 相當(dāng)于維式硬度 明確表示應(yīng)該為 1:10的關(guān)系。俺清楚您的意思,,就這點(diǎn)時(shí)間能如此回復(fù),,俺知矣。
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^_^ 對(duì)頭
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