710| 9
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請(qǐng)問(wèn),,淬火用空冷,,冷速能滿足條件么,? |
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點(diǎn)評(píng)
我知道啊,,我是說(shuō)硬度不對(duì),,這個(gè)硬度不應(yīng)該是淬火硬度,剛查了下,,65mn調(diào)質(zhì)硬度也有hrc40以上了,。建議去查資料
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