3667| 8
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澆注聚氨酯做油缸氣缸密封圈可以嗎 |
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點評
怕有氣孔、雜質之間未可預計的東東
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小黑屋|手機版|Archiver|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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