Construction of building decoration projects, building installation projects and building waterproof projects; Professional contracting of municipal engineering, security engineering, fire engineering, pipeline engineering, landscape engineering; Steel structural parts production, installation; Construction labor subcontracting; Building decoration materials, mechanical and electrical equipment, lighting equipment, monitoring equipment, household appliances, hardware mechanical and electrical, office supplies, computer supplies, recreational supplies, kitchen cabinets sales; Processing and sales of aluminum alloy products; Advertising design and production. (For projects subject to approval according to law, business activities can only be carried out after approval by relevant departments)