OuJieLang (Hunan) Electric Power Development Co. Ltd is specialized in development and research of the energy-saving substation products. Our main products as following: S14-M.RL-;S13-M.RL;S11-M.RL series three dimension roll core oil-immersed transformer, SCB13-RL-\SCB11-RL-series three dimension steel roll resin-insulation dry type transformer. SGB11-RL- series C class insulation roll dry type transformer. 10KV\20KW\35KW\110KV normal transformer, high burning transformer, single phase transformer, outdoor vacuum breaker, drop type fuse, isolation switch, high voltage metering, arrests.