4924| 13
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高難度半手工研磨:博世的高壓噴油嘴端面研磨(端面貼合后要耐受1400公斤油壓) |
點評
我也沒明白,上外圓磨擦平面,比這光多了。
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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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