5540| 10
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請教,這表的數應如何看 |
Re
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補充說明
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NPT螺紋PT螺紋G螺紋和公制螺紋的區別
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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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