Our factory specializes in producing high-quality HAMAG bottles with a diameter of 20mm and a capacity of 20ml. These crimp top clear headspace vials are designed for use in GC GCMS instruments and are made from high-quality borosilicate glass. They feature a flat bottom for stability and are compatible with aluminum caps for secure sealing. These vials are ideal for use in laboratories and other scientific settings. With our commitment to quality and precision manufacturing, you can trust our vials to meet your exact needs. Order now and experience the difference that comes from working with a top-tier factory.