+86-10-59771705/6

Beijing keyuanlong Technology Corporation Ltd. 

Address:No. 13, 11A, Liandong U Valley East District, Jinqiao Science and Technology Industrial Base, Tongzhou District, Beijing

Zip code:100029

Tel:+86-10-59771705/6

Web：http://en.keyuanlong.com.cn 

Email：master@keyuanlong.com.cn

Hangzhou branch

Address:2nd Floor, Building 3, Meijiabiao Industrial Park, 522 Xingguo Road, Qianjiang Economic Development Zone, Yuhang District, Hangzhou

Zip code:3111106

Business tel:+86-0571-86353155

Support tel:+86-0571-86353155

Fax:+86-0571-86353153

Email：master@keyuanlong.com.cn