Address: Room B1-512, Hongdu Business Center, 61 Ande Road A, Dongcheng District, Beijing 

 zip code: 100011 

 Tel: 010-88430370 

 Sales Department: 86-010-88430371-802 

 Sales Department: 86-010-64522083-805 (Foreign Trade) 

 Fax: 010-88473662 

 mailbox: bs-bj@163.com