Taizhou Headquarters:0576-88677966
Hangzhou Company:0571-89775688
US company:+1-408-7257198
German office:+49-7123-307238
Korea Office:+82-031-2115152
Japan company:+81-03-65508388
Singapore:+6588877162
Taiwan company:+886-9-31344923
Shenzhen office:+86-0712-26603034
Email: sales@crystal-optech.com