Established in 2006,Yuyuan Technology specializes in the R&D,design and manufacture of security systems.We have Research & Design engineers in our factory, which includes four doctor's degree holders.With years of hard work, our engineers have successfully developed a variety of new products, and in an effort to make the product's features, appearance and other aspects of a more perfect. Now our productions can satisfy every OEM customer's needs Our products mainly include fingerprint time ...