Zipper Slider Poller and Torsion Tester FY-4

Zipper Slider Poller and Torsion Tester

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 Zipper Slider & Puller Torsion TesterThis unit can perform a test to determine the torsion strength of Zipper slider & puller. By holding the puller and slider in separate jaws of grip in this unit,and twist them to measure torsion strength until the connection of slider and puller breaks; or a rupture of some other kind occurs. It is useful for metallic, plastic, nylon zipper.

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