The knowledge and skills of various ink ink features (5) Special Function Ink Security ink (anti-counterfeit ink) printing inks of various securities, glass ink wholesalers must have a variety of excellent light, heat, water , oil performance, inks, gravure inks is a kind. The knowledge and skills of various ink ink features (5) Special Function Ink Security ink (anti-counterfeit ink) in order to prevent counterfeiting and tampering, you must be able to be seen with special reactive compound, there are used as an ink disappear, matting, color , was the color of faded or security inks. Yawei constant ink _ _ plating ink printing equipment wholesalers by the Dongguan City Hengli Hang Yawei printing equipment materials firm. Yawei constant ink _ _ plating ink printing equipment wholesalers Dongguan City Hengli Hang Yawei printing equipment materials firm (dghyw88.1688.com) (www.hengyawei.com) this year introduced a new upgrade, the above picture is only for reference, please call the contact phone book page or image on to obtain the latest information, contact: Mr. Chang.