Yueqing Dongya Electric Switch Factory was established in 1985. We are a professional manufacturer specializing in the development and production of creepage protection plugs and sockets. Over the years, we have concentrated on improving production technology and building an international sales network based on scientific management and keeping up-to-date manufacturing facilities. Our factory mainly produces LBD series of creepage protection plugs and sockets including GFCI, ALCI, PRCD and ...