3061| 6
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求助:哪里能查到螺紋量規H50421/694的圖? |
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點評
企業是航空部的就會采用部標,如果不是應該采用GB
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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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