Dalian Datong Communication Engineering Co., Ltd. Business scope of the company: Operation outsourcing service; Network security construction; IT operation & maintenance service; Data center construction; Weak current engineering service; System integration engineering service. Design, installation and debugging of telephone communication auxiliary projects Computer network engineering; Generic cabling system engineering; Installation and construction of cable TV system; Building equipment auto-control system engineering; Security monitoring and burglar-Proof alarm system ...  » MORE