Wenzhou Changs International was established in 2004, after more than 8 years developing and continuous growing, It has been awarded well-known reputation in China and all of the world . Its specialized in producing Traffic ,Police,Engineering,Fire-fighting,Ambulance vehicle light bar with speaker&siren series and Anti-riot control equipments and self-protecting police Equipments series

We have numbers of outstanding engineers and technicians with strong ability for R&D. We have developed many series products by ourselves during 8 years, they are Emergency Vehicle Lighting Systems with Sirens and Speakers, Anti-Riot control Equipments and Police Equipments. There are more than 200 kinds of items, all of them have passed tests by China Quality Technology Surveillances Bureau and other authority departments, and 30items of them are gained National Patents.