15166| 12
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塑料攻絲 |
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點評
鑲嵌一個銅套 (帶M4內螺紋) 在長管子里面, 有條件注塑成型的時候實現, 沒有條件可以鉚進去;
自攻螺絲至少比機械螺絲好,數數牙間距就明白了.
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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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