Changsha Rong Sheng optical technology Co., Ltd  

Address：Room 311,Business building,Hunan University Science 

                 Park,NO.186,GuYuan Road,Hi-Tech Development Zone,ChangSha City ,

                 Hunan Province，China

TEL     ：+0086 731 8979 3990

Web     ：www.rsoptics.com

Email   ：rsoptics@163.com

The sales department:

Contact：  zhouwei

Mob：+86 138 7499 4800

WeChat :      138 7499 4800

E-mail  :    rsoptics@163.com

Export Business
Contact:  Lucas Lu
WhatsApp : +86 177 2135 7964
Email:  lucas_lu116@foxmail.com