Shenzhen Ruiyi Electronic science and technology Co., Ltd.
Hotline：0755-27628320
Technical Support Hotline：0755-27628320  13809880478 Wu Zhijian
Fax：0755-29680995
Add：No. Bao'an District, Tangtou Third Industrial Park A District of Shenzhen City 1
E-mail:ry@ruiyismt.com  Web：http://www.ruiyismt.com