China 11mm Snap Vial Manufacturers, Suppliers, 300uL Micro-Insert, 31*6mm Clear, Flat Bottom, Suits for 11mm Snap Ring Vials 250uL Conical Micro-Insert, 31*5.7mm, Suits for 11mm Snap Ring Vials 250uL Micro-Insert with Mandrel Interior, & Polymer Feet, 29*5.7mm, Suits for 11mm Snap Ring Vials 11.6