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Technical development and sales of computer hardware and software, electronic products and electronic components; communication information consulting; economic information consulting (excluding securities consulting, personnel intermediary services and other restricted items); computer system integration; communication engineering; communication equipment, industrial automation equipment, optical transmission equipment, explosion-proof electrical appliances Sales; Design and Construction of Safety Technology Preventive Engineering and Building Intelligent Engineering; Domestic Trade; Import and Export Business (except for all projects prohibited by laws, administrative regulations and decisions of the State Council, restricted projects can only be operated after obtaining permission)

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