5410| 12
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此產(chǎn)品要求長時間按壓﹐尋求更好設(shè)計方案---請教 |
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雖然不懂,但是做人要厚道!
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長時間以后,鋼片不反彈
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Archiver|手機版|小黑屋|機械社區(qū) ( 京ICP備10217105號-1,京ICP證050210號,浙公網(wǎng)安備33038202004372號 )
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