1.Standard vials for GC and HPLC. 2.Vials with integrated Micro-Insert are available. 3.11mm hand crimper & 11mm Decapper. 4 . 2 mL Crimp Top Vials and Crimp Caps – Aijiren. Our 2 mL crimp top vials and 11 mm crimp caps are the perfect fit for HPLC and GC instrument platforms across a wide variety of applications, .