O-Ring Material Tester - Easily sort out your oring with this gravity pen tester. You can identify the following materials: Viton®, Kalrez®, Nitrile or EPDM.
O-Ring Material Tester - Easily sort out your oring with this gravity pen tester. You can identify the following materials: Viton®, Kalrez®, Nitrile or EPDM.