3150| 6
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3/8螺紋能自制量具嗎?通止規(guī) |
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點評
國標的管螺紋也是采用的英制體系,。
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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,浙公網安備33038202004372號 )
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