Beijing headquarters
Address：Room 2504, Block A, Huirong Building, 106Lianhuachi East Road, Xicheng District, Beijing
Postal code：100055
Email address：info@dsip.com.cn
Telephone：010-6389 5529、6398 9765、6397 9129、6920 4772
Fax：010-6398 8419
Record number：No.2021016451-1
Service hotline
