Dec 14, 2022 · Aijiren Techbrand™ 20mm Crimp Seal, Silver, Aluminum Cap, 10mm Center Hole, Assembled Septum 3725.00 NOK / Pack of 1000 Description Aijiren Tech™ headspace vials are available in clear or amber glass with a round or flat base, a crimp seal with a beveled or square edge finish, or with a screw-thread finish.