Beijing Dagong Technology Co., Ltd.

Address: 1/F,Founder Bldg No.9,5th Street,Shangdi,Haidian District,Beijing,100085,China

Tel: +86-10-82177816

E-mail: dg@dagongtech.com

Website: www.dagongtech.com

ALIBABA: https://dagongtech.en.alibaba.com/