trepanping tool
... trend 方向 trepanning tool 套孔刀 trial 试车,试验性的 ...
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本实用新型属于用于不同类型的机床，加工不同形状套类零、部件深孔的组合式刀杆。
The utility model belongs to a combined cutter arbor which is used for various types of machine tools and used for processing the deep holes of accessories and components with different shapes.
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