6250| 17
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∅12×2管道上開數條0.2mm寬縫隙,,有較高精度要求 |
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小黑屋|手機版|Archiver|機械社區(qū) ( 京ICP備10217105號-1,,京ICP證050210號,浙公網安備33038202004372號 )
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