6895| 7
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弱弱的問(wèn)一下,2A50鋁合金(鍛鋁)去應(yīng)力熱時(shí)效溫度多少,時(shí)間多長(zhǎng) |
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小黑屋|手機(jī)版|Archiver|機(jī)械社區(qū) ( 京ICP備10217105號(hào)-1,京ICP證050210號(hào),浙公網(wǎng)安備33038202004372號(hào) )
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