5817| 12
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尋找精密加工廠家 |
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點(diǎn)評
是的,,三維示意圖還是有點(diǎn)問題。45號鋼需要熱處理的,。
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小黑屋|手機(jī)版|Archiver|機(jī)械社區(qū) ( 京ICP備10217105號-1,,京ICP證050210號,,浙公網(wǎng)安備33038202004372號 )
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