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   Beijing ICP Backup 18025856 Number-1      
   Beijing Public Network Security Record 11011202004067 Number    
   Address: Room 307~309, Main Building, Instrument Institute, No.155, BeiYuan, Tongzhou, Beijing
   Phone: 400-608-5817   010-68786366    Mobile phone：13331119888（WeChat） E-mail: yibiao@vip.163.com