Design, production and installation of logos and signboards (except those with special provisions by the state); project management; design, production, agency and release: light boxes, signs, word boards, display boards, neon lights, electronic flap devices, inflatable devices, electronic displays, vehicle-mounted advertising; agency for newspaper advertising, film and television advertising, radio advertising; corporate marketing planning; design , production, agency, and publishing of domestic and foreign advertisements; processing and sales of: electronic products (excluding electronic publications), low-voltage electrical appliances, hardware, communication equipment, communication equipment (excluding satellite ground receiving facilities), auto parts, metal materials (excluding rare and precious metals); home appliance repair (excluding installation and maintenance of gas burning appliances); electronic product development and processing , production (excluding electronic publications); production of cleaning supplies, chairs; sales of steel structure products; welding of steel structure parts; production and sales of: garbage bins; processing and sales of wood products; production and production of outdoor sculpture billboards; sales: guidance systems, arts and crafts (except cultural relics, ivory and their products); construction of garden landscape projects; sales, production Make, install and maintain road traffic signs and signboards; design, produce and install highway signs and place name signs; install lighting (lamps) and signboards (advertising); engage in construction-related businesses, design and construction of building decoration and decoration projects (the above two items shall be engaged in business activities within the scope of the license after obtaining relevant administrative licenses), metal structure manufacturing