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磁力鉆

磁力鉆

BM60Y
- 4檔速度：用1個雙速馬達和2個齒輪換擋
- 自動控制鉆孔和回轉
- 電路自動斷開保護裝置
- 2根精密的縱向鋼柱確保了極好的切割精度
- 碳化鎢硬質合金空心鉆頭

国产视频一区二区三区