Headquarters

Floor 17, BLD A3, R&D Park,
Hi-Tech Zone, Ningbo, China.

+86-0574-87268805/87268821

service@tong-dao.com

     Shanghai Office

Room 3002, No.1 BLD, Lane 737,
North CaoXi RD, Shanghai

+86-021-54893661

     Hongkong Office

FLAT/RM A9, 4/F,
GRANDVIEW MANSION 119,
Chatham RoadSouth, Tsim Sha Tsui,
Kowloon, Hong Kong

+852-2881-8087/9047-9122

     Dalian Office

4th Floor, No.872, Southwest Road,
Shahekou District, Dalian

+86-0574-87268805/87268821