Juhonkia continues to introduce new innovations in the field of ring main switchgears. The ring main switchgears series products achieve full coverage of voltage levels and different insulation media products. It is the first domestic enterprise to simultaneously complete the R&D, manufacturing, network access testing and batch supply of standardized and customized SF6 gas insulated, solid insulated, environmentally friendly gas insulated, atmospheric air insulated ring main units and primary and secondary integrated ring main boxes.