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可伸縮及旋轉(zhuǎn)主軸 |
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點(diǎn)評(píng)
便宜的是分開的 升降跟轉(zhuǎn)動(dòng) 2個(gè)機(jī)構(gòu)合在一起 貴的 就是一個(gè)絲桿花鍵軸 螺母上面有2個(gè)同步輪安裝軸 掛2根上去就行
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