Aijiren specializes in the production of Lab Vials for HPLC and GC since 2007. Home. About. Products 1-4mL Autosampler Vials for HPLC, UPLC, GC 16mm, 25mm Test Tubes for Water Analysis WHEATON® 1000mL Lab Media Bottles, GL-45, Borosilicate Glass WHEATON® Glass Media Bottles, 1000mL or 32oz Clear, 45mm (GL45) Finish, Type I Borosilicate ...