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  Contact information:

  Customer service hotline: 400-666-8655 (service time 9: 00-18: 00)

  Beijing Branch: 010-56035128

  After - sales service: 0316-5103998

  Official microblogging: http://weibo.com/worksungroup

  Feedback: http: //www.cenir.cn/server-36.html

  Beijing Marketing Center Address:

  Address: Room 503, Building 3, Nood Center, No. 138, South Fourth Ring Road, Fengtai District, Beijing

  Langfang Headquarters Address:

  Address: Langfang City, Hebei Province, left the town on the north side of the bridge 188 meters