主营产品： New material technology development, technical consulting, technical services: building engineering construction: indoor and outdoor decoration engineering: instrumentation, building materials, decorative materials, hardware products, chemical raw materials (except dangerous goods and precursor drugs), wholesale and retail of automotive supplies: Enterprise management information consulting: exhibition display services: conference services: education information consulting services (excluding study abroad and intermediary services). (Projects approved in accordance with the law can only carry out business activities after approval by relevant departments)
主营产品：Engaged in the installation, maintenance and experimental business of power facilities below 35 kV, street lighting engineering and power transmission and transformation construction.
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