Main products: vacuum switch tubes, vacuum circuit breakers, vacuum switch cabinets, operating mechanisms, electronic ceramics and glass products. Widely used in electric power, metallurgy, mining, petroleum, chemical industry, railway and other power transmission and distribution systems. Products are distributed in various provinces and cities in China, and exported to the United States, Japan, South Korea, Taiwan Province Province, Southeast Asia and other countries and regions. The production, sales and technical quality of products are in a leading position in China.