Shanghai Ampelair Machinery & Electronic Technologies Co., Ltd is a company engaged in the production and sales of various ventilation products. With her advanced technologies, Ampelair provides Turbine Ventilator ,Ball Spout,Swirl Air Diffuser, Flexible Duct Connector, etc. to her esteemed customers. At present the company's business covers not only the domestic but also the international market. Especially, more and more sub-vendors have been established across the country.