borosil HPLC vials slit-HPLC Sample Vials borosil crimp seal vial manufacturer-Aijiren Crimp Vials ND11 crimp vial-Aijiren Vials for HPLC/GC. 4.Vials have a 40% larger opening than standard opening aluminum seal vials. 5.Vials are manufactured of Clear or Amber borosilicate glass. 6.The standard 12x32mm profile is compatible with 11mm aluminum seal closures. 2ml