1. Feature: flip off center hole
2. Material: double coated aluminum and plastic
3. Color & logo: can be customized
4. Size: 28mm and 32mm
5. Application: For infusion pharmaceutical products packaging
6. Certificate: ISO 9001
7. Advantage: All the flip off seals produced in purification workshop, quality control start from the raw material. Cap surface is clean, without burr and oil, easy to seal with rubber stopper and
glass vials.