Foramen cylindrus adaperiens ostium ovale machinam formatam, suus vulgaris in America Septentrionali et Americano Australi est.
Torrist structure, the forming roller has high machining accuracy, and the roller use material as Cr12 with high precision work ,heat treatment, uselife is longer
Special design of oval hole , 3 stations of punching, edging and flanging at the same time, accurate hole size (152 * 25MM), accurate punching position, no half hole, flanging does not hurt finger
tracking Conscidisti, celeritas in foraminis 5m / min, sine velocitate foraminis 9m / min
Longitudo slat in plc ad libitum poni potest (dummodo tota longitudo numero foraminum aequet)