4929| 9
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鉆孔時有一圈一圈的紋 |
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點評
要一步到位的,,要不然太耗費(fèi)工時了
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小黑屋|手機(jī)版|Archiver|機(jī)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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