Used for testing the air-tightness of the crown cap. Stainless steel design ensures the durability of the tester during test.
Cap the crown cap on the neck of the bottle mold, plunge the cap in the water tank, then increase the internal pressure and observe if there are air bubbles coming out, so that to test the air tightness of the caps.
Widely used in breweries, beverages and caps manufacturing industries.
