For Sales,　　  to:sales@kozo-optics.com
For Technical,   to:support@kozo-optics.com
For Finance,       to:finance@kozo-optics.com
: kozo-optics@hotmail.com
: herry9999@hotmail.com
Tel: 0086 25 84716665
Fax: 0086 25 84715556
19E, No.18 Zhenghong Street, Nanjing, China
ZIP:210005