12099| 7
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國標管螺紋G和Rp的區別 |
點評
是的,看的比較亂
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點評
錐圓就R配RP——要指明哪個是內螺紋
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Archiver|手機版|小黑屋|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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