Thanks to the good growth of our company and the current world demand for environmentally friendly products, we have invested in a ventilation equipment factory with 20 years of production experience. The company is committed to providing customers around the world with a wide range of affordable and durable ventilation equipment, including non-powered turbine ventilators, axial flow roof fans and negative pressure fans for poultry farms. Welcome to contact with us for detail information, we would send you suitable technical solution.