Office equipment consumables sales; office supplies sales; daily necessities sales; computer and office equipment repair; security system monitoring services; digital video surveillance system sales; computer software and hardware and auxiliary equipment wholesale; computer software and hardware and auxiliary equipment retail; household appliance sales; audio equipment sales; home audio-visual equipment sales; electronic product sales; daily product repair; information system integration services; computer system services; display device sales; network equipment sales; mobile terminal equipment sales; terminal testing equipment sales; advertising design and agency; advertising production; household appliance retail; household appliance repair; general equipment repair; household appliance installation services; furniture installation and repair services; landscaping engineering construction; residential water and electrical installation and maintenance services; information system operation and maintenance services; door and window sales; daily necessities wholesale; hardware product retail; furniture sales; furniture accessory sales; textile product sales; hardware product wholesale; toy sales; daily miscellaneous product sales; toy, animation and amusement product sales; building decoration material sales; plastic product sales; daily glass product sales; semiconductor lighting device sales; lighting fixture sales; broadcasting and film equipment sales; labor protection product sales; office services; digital content production services (excluding publication and distribution); advertising publication; advertising publication (non-radio, television, newspaper and publishing units); earth and stone engineering construction; municipal facility management; irrigation services; labor services (excluding labor dispatch); construction machinery sales; mining machinery sales; road freight transport of general cargo vehicles with a total mass of 4.5 tons and below (excluding network freight and dangerous goods); photography and video production services; general mechanical equipment installation services; residential interior decoration; second-class value-added telecommunications services; waterway general cargo transport; electronic publication production; information network dissemination of audio-visual programs; general contracting of housing construction and municipal infrastructure projects; road freight transport (excluding dangerous goods)