Lanzhou WeiRi Bio-Engineering Co., Ltd. is a professional Manufacturer. Our main products series include Nisin. Most of our products have obtained International Approvals like GB, ISO9001, FDA 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, Western Europe, Eastern Europe, South America, Southeast Asia, Eastern Asia, Mid East, Oceania, Africa.