Shenzhen USON Smartech Co. Ltd. was established in Baoan District, Shenzhen specializes in the development, design manufacturing and sale of high quality contactless, contact and dual-interface smart cards as well as committed to Information Security. ,brSmart cards-JAVA Card> CPU native card IC card etc, our products have covered the fields of public transportation banking, highways hospitals, colleges water supply, electricity gas, oil and so on.br