2854| 1
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求助:比塞洛斯連采機左右行走機構鏈輪 |
點評
大零件,有專利?保護有多長時間?個人感覺國人做,只做的50-80%的程度。
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Archiver|手機版|小黑屋|機械社區 ( 京ICP備10217105號-1,京ICP證050210號,浙公網安備33038202004372號 )
GMT+8, 2025-7-4 21:34 , Processed in 0.068662 second(s), 21 queries , Gzip On.
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