28x15mm Aluminum ROPP Cap
HAOMEI Aluminum offers standard aluminum closures in 20mm, 22mm, 25mm, 28mm, 30mm, and 31.5mm​ sizes.
HAOMEI Aluminum offers standard aluminum closures in 20mm, 22mm, 25mm, 28mm, 30mm, and 31.5mm​ sizes.
The ROPP aluminum cap has a diameter of 28 mm and a height of 15.5 mm, and its inner liner is made of thermoplastic elastomer (TPE), which is one of the most commonly used bottle neck sizes.