2702| 11
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如何知道彈簧的型號規(guī)格,非標的話定做成本高嗎 |
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點評
手上只有卡尺,不太會畫啊
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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(wǎng)安備33038202004372號 )
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