Hebei Nanhao Information Industry Co., Ltd is a professional enterprise, which produce Optical Mark Reader (OMR), Economical Personal Computer (EPC), Online Scoring System, relevant software and forms. The products have passed 3C, CE and ISO9001 certificates. Besides, they achieved 11 patents and 26 computer software copyrights. The OMR we manufacture has been sold to 8ministries and commissions and 28 provinces and municipalities domestic and nowadays we are enjoying 65% of the national market. Our products have been also exported to Turkey, Vietnam, Russia, Cameroon, etc.