Our glass serum vials can be used for many different applications. They are suitable for pharmaceutical packaging, lyophilization, and sample storage. A number of different closures can be provided for glass serum vials, including snap caps, vial stoppers, and more.Serum glass vials are available in a variety of different sizes and capacities. Custom vials can also be manufactured on request, and our state-of-the-art manufacturing facility ensures highest quality and fast turnaround on custom orders. And we provide both clear and amber glass vials. Continuous innovation and process improvement with state-of-the-art production lines and inspection systems enable us to provide a wide range of pharmaceutical primary packaging solutions which contribute to customer's growth. By over 25-year ongoing optimization along with constant research and development, Zhengli vials are designed for to date market trend. Lyo bottom, blowback, crimp neck, screw neck, flip cap, internal lip, pilfer proof and snap-on, all are included in Zhengli's vails selection. Standard: GMP environment plant 100% AIS dimensional and cosmetic inspection 100% traceability of products Lyophilization Sterilization Ready to fill&finish