Headquarters:
11/F,Hong hua Venture Plaza, 3911 Bin sheng Road, Binjiang District ,Hangzhou City
Zhejiang Province,China
310051
(86)571－88480428
(86)571-88480433 (Fax)
International Business Department
(86)0-13851803267
Jack@cntopone.com

Beijing Branch:
(86)013911806691
gyl@cntopone.com

Research and Development Department：
(86)571-88480428
(86)571-88480433（Fax）
rd@cntopone.com
Manufacture Department：
(86)571-88480429
(86)571-88480433（Fax）
products@cntopone.com
Human Resources Department：
(86)571-88480428
(86)571-88480433（Fax）
hr@cntopone.com