Since the Europe's largest Plant - "TESO" establishment in 1973 in Pskov, the city had become the main region for the development, design and manufacturing of heavy electric welding equipment. It was the Pskov specialists, who could compete with the Kakhovka Electric Welding Equipment Plant, who developed projects of equipment systems, lines, units and machines that provide mechanization and automation of welding work in metallurgy, mechanical engineering and the construction industry and integrated them to production process.