4747| 7
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去年年底做了一批鎂合金擺臂,今年初拿出來(lái)的時(shí)候變形了,請(qǐng)教 |
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點(diǎn)評(píng)
買的材料 供應(yīng)商沒(méi)做過(guò)熱處理嗎?
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點(diǎn)評(píng)
怪不得變形,哈哈,百度一下自然之道什么叫T6
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