UAE crimp vial exporter-Aijiren Crimp Vials 2ml Crimp Top HPLC Vials These 2ml autosampler vials are made with tightest dimensional tolerances to match leading brands like Aijiren, Waters, Thermo Fisher etc. Compatible 11mm open-top aluminum crimping seals with standard opening available with pre-inserted PTFE-Silicone septa.