5010| 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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