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Tel：0594-3791081-8120 

Email：servers@e4academia.net

Shanghai office

Phone：13626922577，15880306211

Email：sh-engineering@e4academia.net ，assistant@e4academia.net   

Shenyang Office

Phone：13860990025  

Email：shenyang@e4academia.net

Harbin Office

Phone：13860939823  

Email：heb@e4academia.net

QingDao Office 

Phone：13850200580  

Email：service@e4academia.net

Hebei Office 

Phone：13599876609 

Email：shanghai@e4academia.net

Tianjin Office 

Phone：15260267599 

Email：sa-tianjin@e4academia.net