China Electronic System Construction Engineering Co., Ltd. (CESEC) relies on advanced CFD technology, intelligent operation and maintenance management system technology, BIM, and other technological applications in data centers (government and enterprise, cloud computing, contingency and disaster recovery, internet), intelligentization and system integration (public buildings, smart cities, public service facilities, intelligent manufacturing), cleanliness engineering (semiconductor, flat panel display, biomedicine, new energy) and other fields to maintain a leading advantage.