Shenzhen Boan Safe Electron Series Co., Ltd.
Rm. D, 10/F, No. 3 Building, Saige technology park
Huaqiangbei road, Shenzhen 　 China
Tel: 0086-755-83762035
Fax: 0086-755-83762028
Email:boanzgp@public.szptt.net.cn

Beijing Vanguard Security System Co., Ltd.
8/F., Fanya building No.128 Zhichun Road Haidian district Beijing China
Post Code:100086
Tel:0086-10-62628853
Fax:0086-10-62628852

Shanghai Advance Electronics Co., Ltd.
8A Business building, Qingzhilu Hotel No. 221 Wending Road Shanghai
China
Postcode:200030
Tel:0086-21-64697213
Fax:0086-21-64696652
Email:advanced@81890.net