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這個工件是買薄板卷成一個錐度再加工,,還是分成幾段用無縫管加工 |
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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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