General project: Sales of mechanical equipment; Manufacturing of metal structures; Sales of building materials; Sales of building decoration materials; Wholesale of hardware products; Sales of mechanical parts and components; Sales of electrical equipment; Sales of mechanical and electrical equipment; Wholesale of computer software, hardware, and auxiliary equipment; Sales of communication equipment; Repair of communication equipment; Electronic product sales; Wholesale of daily necessities; Retail of hardware products; Sales of lighting fixtures; Retail of computer software, hardware, and auxiliary equipment; Sales of communication equipment; Sales of non-metallic minerals and products; Sales of metal products; Sales of plastic products; External contracting projects; Construction of metal doors and windows engineering; Floor sales; Domestic trade agency.