The 9mm hplc vials produced by Aijiren can be used in many places and scenarios. The GC System is just one of them. More often, the 9mm hplc vials produced by Aijiren are used in different Autosamplers. Its compatibility is a major part of its popularity. the reason. Aijiren’s 9mm hplc vials is one of the most popular products. Headspace Crimp Vials, 20 mm - Restek