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Dalian Cloud is supported by the Dalian Municipal Commission of Economy and Information Technology, Dalian Huaxin Computer Technology Co. The platform provides cloud services, cloud storage, cloud desktop, trade 365, cloud call, cloud OA, cloud operation and maintenance services. Cloud computing is an important form of information infrastructure and application service model in the Internet era, which is the strategic direction of industrial development and an important engine for promoting economic growth and accelerating industrial transformation. In China's implementation of the "Internet +", "Smart Manufacturing 2025" development strategy, cloud computing, big data will play an important technical support role.