T：+86(0)510-8820 8776

F：+86(0)510-8820 8776

E-MAIL：office@rud.net.cn

ADD ：No.22 Xintunheng Road Xishan district Jiangsu Province China 

T：+86(0)10-8146 4564

F：+86(0)10-8146 4564

E-MAIL：office@rud.net.cn

ADD ：Building No.8,Sanye Industry Park, No.308 Tongshun Road

Shunyi district Beijing China