Manufacturing and sales of police equipment (including security equipment); fire-fighting equipment, special equipment for evidence collection and identification, special equipment for traffic safety and control, lighting electrical accessories, lighting fixtures, clothing manufacturing and sales; self-operated and agent import and export business of various commodities and technologies (except for commodities and technologies that are restricted by the state or prohibited from import and export). Licensed projects: construction projects; fire protection facility projects; power generation business, power transmission business, power supply (distribution) business; installation, maintenance and testing of power transmission, power supply and power receiving power facilities. General projects: sales of optical instruments; engineering and technology research and experimental development; science and technology promotion and application services; safety technology prevention system design and construction Services; manufacturing of smart equipment for sports consumption; sales of communication equipment; sales of Class I medical devices; sales of Class II medical devices; sales of digital video surveillance systems; sales of fire-fighting equipment; manufacturing of security equipment; sales of security equipment; manufacturing of metal products for safety and fire-fighting; sales of special chemical products (excluding hazardous chemicals); Manufacturing of information security equipment; sales of information security equipment; sales of bio-based materials; sales of lighting appliances; security system monitoring services; sales of electronic components and electromechanical component equipment; sales of industrial textile products; sales of outdoor products; sales of intelligent unmanned aerial vehicles; artificial intelligence industry application system integration services; special equipment repair Management; sales of electrical signaling equipment and devices; wholesale of sporting goods and equipment; sales of special labor protection products; sales of labor protection products; sales of new energy vehicles; automobile sales; retail of motorcycles and spare parts; sales of trams; sales of office supplies; sales of communication equipment; solar power generation technical services; photovoltaic power generation equipment rental