Structure Properties of product: A. It has self-destructive characteristics, when the expected dose of the drug is injected, the self-destructive performance will automatically take effect, effectively prevent the reuse of syringes, avoid cross-infection and improve the safety of clinical injection. B. The self-destructive structure is various. There are two kinds of self-destructive structures: front-end structure and back-end structure. The self-destructive performance is high and reliable. Front-end type, suitable for small dose injection (1.0ml), low residue, and back-end type, suitable for large dose injection (2.0ml and more than 2.0ml) C. Size: 1.0ml , 2.0 ml , 2.5 ml , 3.0 ml , 5.0 ml , 10.0 ml , available.