Changeable optical Information Code anti-counterfeiting packing Box

Changeable optical Information Code anti-counterfeiting packing Box

Program Description: 

       You can achieve continuous flow number of light and dark code corresponding. Can be achieved with the same password, the combination of special light source is visible. 

Features:

       (1) Flow sequence code, can be used in the order of boxing.

       (2) can achieve the light and shade corresponding, double security.