Shanghai Qinshuo Cool and Warm Equipment Co., Ltd. is a professional company integrating the research & development, manufacturing and installation of all kinds of new style compound duct systems together. The compound duct of Bolivian magnesium, XPS, polyurethane, phenolic, fiberglass and color steel which are researched & developed by our company have passed the certification of ISO9001. We have brought in advanced production lines for compound duct plates and advanced production techniques. For installation, we have a well managed, well-trained and civilized construction team.We are the work partner of International Expo in Shanghai.And we won high praise from our customers home and abroad.Our goal is to establish long-term business relationship with customers by selling our products with low profit.Sincerely wish your cooperation and welcome to visit our factory.