4758| 10
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尋熱處理:42CrMo鍛件軸類,熱處理HB280-340 |
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點(diǎn)評
你們在哪里的,我和我朋友過來幫你解決!
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點(diǎn)評
明天看化學(xué)成分再說。估計(jì)之后的鍛件材料有點(diǎn)問題。
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