2140| 8
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機憶械新(3)——液氮冷凍去毛刺設備的設計 |
點評
一般噴砂處理成本都嫌高了,別說液氮什么的了,液氮成本就不低了
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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 )
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