3519| 5
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起重機吊重回轉發響 |
點評
齒條缸回轉也有回轉支承,只不過小了點,隨車吊嗎?
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小黑屋|手機版|Archiver|機械社區 ( 京ICP備10217105號-1,京ICP證050210號,浙公網安備33038202004372號 )
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