2602| 10
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請(qǐng)大家看看各種工藝制品的缺陷還有哪些,?請(qǐng)補(bǔ)充下和指正下,。 |
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點(diǎn)評(píng)
除了熱處理,、鍛造、熔化焊,,氧化在大部分工藝都是可以忽略的,,除非材料特殊
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