1.ink for election especially

2.The silver nitrate indelible ink contents silver nitrate from 5 to 25%, and the color in the finger can keep above 168 hours.

3.Blue,when the ink tipped on the finger ,turn to black color

4.The ink can’t washed off by water, alcohol and bleach. We can offer  different colors , such as purple ,blue and so on.

5.Our quality management strictly obey the rule of ISO 9001, 2000Version.