Manufacturing of security equipment; manufacturing of special equipment for traffic safety and control; sales of security equipment; sales of diving and rescue equipment; sales of environmental emergency testing instruments; sales of fire-fighting equipment; sales of pumps and vacuum equipment; sales of special equipment; sales of underwater systems and operating equipment; sales of machinery and equipment; sales of automobiles; motorcycles and parts Wholesale of accessories; sales of metal products; sales of metal tools; sales of instruments and meters; sales of lighting fixtures; sales of electronic products; sales of special labor protection products; sales of labor protection products; sales of industrial textile products; sales of outdoor products; wholesale of clothing and apparel; retail of clothing and apparel; wholesale of shoes and hats; sales of daily necessities