Guangzhou Changchuan Technology Co., Ltd., established on 2003-12-16, Business scope includes(build,try)power facilities;software development;Information system integration service;Information Technology Consulting Services;Energy Technology Research,Technology Development Services;Research on Network Technology,to develop;computer technology development,Technical Services;Electrical Machinery Testing Services;Mechanical and electrical equipment installation engineering professional contracting;Energy-saving technology promotion service;Energy saving technology development service;Energy-saving technical consultation,communication service;Energy-saving technology transfer service;Energy Management Services;Information Electronic Technology Services;Power Electronics Technical Services;Computer and Auxiliary Equipment Repair;Communication equipment repair;electrical equipment repair;Instrument Repair;Professional repair of communication transmission equipment;Building electrical system installation;Installation of communication lines and equipment;Monitoring system engineering installation service;Electronic automation engineering installation service;Electronic equipment engineering installation service;Intelligent installation engineering service;Building equipment automatic control system engineering services;Security monitoring and anti-theft alarm system engineering services;Smart Card System Engineering Services;Communication System Engineering Services;Computer Network System Engineering Services;Broadcasting System Engineering Services;Mechanical and Electrical Equipment Installation Services;Lightning protection engineering professional construction;Design of Security Technology Defense System,construction,repair;Post-construction decoration,Renovation and Cleanup;Indoor decorations,furnish;Wholesale of computer spare parts;Sales of electrical machinery and equipment;Smart Electrical Equipment Manufacturing;electronic,Communication and Automatic Control Technology Research,to develop;software wholesale;General Machinery Sales;computer retail;Construction labor subcontracting;Computer Parts Retail;computer wholesale;Manufacture of power distribution switch control equipment;Wholesale of communication equipment and supporting equipment;Electrical Equipment Retailing;Electrical instrumentation manufacturing;software retail;Wholesale of electrical equipment;