shenzhen yuantong lianda technology Co.,LED

Specializing in gifts u disk system, advertising gifts u disk production, wholesale, custom usb flash drive, sd card, mini sd card flash memory cards and flash system related to the development, production and sales, is a collection of system research and development, production, technical services for the integration of high-tech enterprises, is the sd card association, member of the world top 500 enterprises outstanding grade a + supplier.