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手動黃油槍螺紋規(guī)格有哪些�,�,?加油孔的螺紋應(yīng)該預(yù)留多大的? |
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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