perforator brandeggiabile spindle autostringente and autocentrante, suitable for the realization of high length through the holes.

• 1. 一种活塞自动定心的液压式力标准机油缸及自动定心方法 [P] . 中国专利： CN112727847A . 2021-04-30
• 2. 工件的自动定心装置以及自动定心方法 [P] . 中国专利： CN106573353A . 2017-04-19
• 3. perforator brandeggiabile spindle autostringente and autocentrante, suitable for the realization of high length through holes [P] . IT1308891B1 . 2002-01-11

  机译： 穿孔机品牌，主轴自动定心和自动定心，适合于长通孔的实现

• 4. An industrial result of Clay Bricks, Cement or other suitable material, perforated by plane, in a general sense, without limitation on the number,Shape and size of the holes. [P] . ES83841A1 . 1923-04-16

  机译： 一般而言，在平面上打孔的粘土砖，水泥或其他合适材料的工业成果，而不受孔的数量，形状和大小的限制。

• 5. device for positioning a workpiece within the clamp of a spindle of a machine tool autocentrante with length of fixed and adjustable [P] . IT8922043D0 . 1989-10-17

  机译： 用于将工件定位在机床自动对中主轴的夹具内的装置，其长度固定且可调

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