Optical Mark Reader is a high-tech data input computer peripheral. NANHAO OMR has gained 6 patents and 12 computer software copyrights. Our OMR is famous for its high cost performances and low prices....
Nanhao Group - Nanhao ( Beijing) Science and Technology Co., Ltd. was established in 1995. It' s a national high-tech private enterprise which has independent intellectual property and has been....