Technical services, technical development, technical consulting, technical exchange, technology transfer, technology promotion; production of special labor protection products; sales of special labor protection products; production of labor protection supplies; sales of labor protection supplies; manufacturing of instruments and meters; sales of instruments and meters; sales of building materials; manufacturing of garments; general cargo warehousing services (excluding hazardous chemicals and other items requiring permits); leasing of non-residential real estate; import and export of goods; road cargo transport for general freight vehicles with a total mass of 4.5 tons or less (excluding online freight and dangerous goods); manufacturing of shoes; wholesale of medical protective supplies for medical staff; retail of medical protective supplies for medical staff; manufacturing of electrical equipment; sales of electrical equipment; wholesale of hardware products; retail of hardware products; manufacturing of rubber products; sales of rubber products.