HongNiu Electric Co.,Ltd is a professional Manufacturer. Our main products series include Auto over/under voltage protector,Off-phase sequence protection relay,Time Relay,relay,general purpose relay,timer. Most of our products have obtained International Approvals like CE, ISO9001, ISO9001:2000 etc. With the advanced production facility, strong technical ability and professional production capability, we're sure that we can supply customers with the high quality and best design.Main Export Markets:North America, Southeast Asia, Eastern Asia, Mid East, Africa.