1.It is used for filling in insulin,lidocaine,etc 2.application:glass tube+aluminium with rubber septa+ ... Origin:China Size:2ml,3ml Material: neutral borosilicate glass with rubber stopper Feature:2ml & 3ml cartridge ... customers. Service:We offer these related service to glass bottle: Cartridges, sterial, autoclaved, silicone in ... to let us know. If you need our e-catalog or real samples, plz let us ...