5143| 10
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尋熱處理:42CrMo鍛件軸類,,熱處理HB280-340 |
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點評
你們在哪里的,,我和我朋友過來幫你解決,!
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點評
明天看化學成分再說,。估計之后的鍛件材料有點問題,。
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小黑屋|手機版|Archiver|機械社區(qū) ( 京ICP備10217105號-1,,京ICP證050210號,,浙公網安備33038202004372號 )
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