Intelligent channel gate system, ladder control management system, intelligent access control system, intelligent parking lot system, intelligent road gate, attendance equipment, license plate identification system, smart card, electronic control automatic gate, traffic management equipment, security equipment, building intercom equipment, alarm equipment, computer software and hardware, electronic products, mechanical and electrical products, domestic trade (excluding franchise, special control, monopoly commodities); strong and weak electricity engineering construction; investment in industry; import and export of goods and technology. License business project is: intelligent channel gate system, ladder control management system, intelligent access control system, intelligent parking lot system, intelligent gate, attendance equipment, license plate recognition system, intelligent card, electronic control automatic gate, traffic management equipment, security equipment, building intercom equipment, alarm equipment, computer software and hardware, electronic products, the production and processing of mechanical and electrical products.