The inner ring is made of high-quality plastic material, with fine workmanship, smooth and non-rough edges, and the inner ring material is resistant to corrosion and oxidation. The surface of the bottle cap adopts a highly anodized aluminum process, the material is acid-resistant and corrosion-resistant, and has a long service life. The exquisite workmanship shows the exquisiteness of the product. This kind of bottle cap has a wide range of uses and can be used for all kinds of bottles, including plastic bottles and glass bottles, with reliable quality, multiple specifications and colors, and we support for customization. Product Details