"Sincerity, Innovation, Rigorousness, and Efficiency" is the persistent conception of our company for the long-term to develop together with customers for mutual reciprocity and mutual benefit for Roof Ventilation Fan, Stall System , Universal Joint , Butterfly Shutter Fan ,Natural Ventilation For Livestock . We have experienced manufacturing facilities with more than 100 employees. So we can guarantee short lead time and quality assurance. The product will supply to all over the world, such as Europe, America, Australia,Algeria , San Francisco ,Johannesburg , America .All these products are manufactured in our factory located in China. So we can guarantee our quality seriously and availably. Within these four years we sell not only our products but also our service to clients throughout the world.