YONGU.Founded in 1985, YONGU is a comprehensive enterprise specializing in research and development, manufacturing, sales and service of power transmission and distribution systems. Its products cover power transmission and distribution materials such as power fittings, cable accessories and insulators, as well as power transmission and distribution equipment such as column-mounted circuit breakers, disconnect switches and surge arresters. As a Class A supplier of the State Grid and the Southern Power Grid, YONGGU products are widely used in electric power, rail transportation, energy and chemical industry, and serve in extra-high voltage projects, agricultural and distribution network renovation, and key projects of PetroChina, Sinopec and so on. The main products include pre-strung wire fittings, vacuum circuit breakers, cold-shrink accessories and other full series of power transmission and distribution equipment and solutions for 35kV and below voltage levels.