conical micro insert suit for snap top vials from Aijiren China GC Vial Manufacturers, Suppliers, Company - Factory 250uL Conical Micro-Insert, 31*5.7mm, Suits for 11mm Crimp-Top Vials 250uL Micro-Insert with Mandrel Interior, & Polymer Feet, 29*5.7mm, Suits for 11mm Crimp-Top Vials 0.3mL Clear PP Crimp-Top Micro-Vial, 11.6*32mm