3093| 3
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梯形內(nèi)螺紋Tr24X5,,螺紋長度120mm,材料304,,怎么加工,用什么刀具,? |
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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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