Square negative pressure fan, Foshan Nanhai Jiuzhou Pratt & Whitney Fan Co., Ltd. is a professional fan manufacturer and was founded in 1996. The head office is located in Foshan City, Guangdong, South China, and the branch is located in Songjiang District, Shanghai. He is a member of China General Mechanical Fan Industry Association, a member of China Electric Industry Association's branch horsepower motor branch, a member of Guangdong Quality Association, and a member of Guangdong Environmental Protection Industry Association. The factory covers an area of 80,000 square meters, and the standard factory building covers an area of 30,000 square meters. It has more than 600 employees, and has general and numerical control equipment such as machining, sheet metal, stamping, cutting, riveting, dynamic balancing, and various precision measuring tools. And testing equipment; built fan assembly, automatic temperature drying and motor production line, in cooperation with Xi'an Jiaotong University, the application of advanced MGS, CAT automatic test system, the establishment of advanced fan aerodynamic performance testing center and motor performance testing center, comprehensive The use of CAD and CAXA auxiliary design systems and long-term cooperation with a number of colleges and universities to participate in technology research and development and talent training have created a group of outstanding professional and technical personnel and marketing teams. It has laid a solid foundation for product development and quality control. The square negative pressure fan "Jiuzhou Pratt & Whitney" has successively passed ISO9001: 2000 international quality system certification, CCC, CE and other product quality safety certifications, and has successively obtained "China's Top Ten Fan Quality Brands", "National Fixed Fire Extinguishing System and Quality of Refractory Components" Supervision and Inspection Center qualified products "," National Compressor Refrigeration Equipment Quality Supervision and Inspection Center qualified products ", 2004 (Shanghai), 2006 (Beijing)" China International Fluid Machinery Exhibition Gold Award "and many other awards and titles. The square negative pressure fan "Jiuzhou Pratt & Whitney" has been adhering to the core philosophy of "pursuing excellence, casting good quality with heart" for many years, advancing with the times, implementing brand operation strategies, so that the company's products have excellent cost performance and efficient and efficient services. Features. Based on the business policy of “honesty, pragmatic innovation, strengthen management, and new heights”, we will create a well-known brand enterprise full of vitality and competitiveness. We will sincerely cooperate with customers at home and abroad with a pragmatic attitude to create a better tomorrow! The square negative pressure fan enterprise spirit of excellence, continuous innovation, quality first service, leading square negative pressure fan product features. The whole machine adopts CAD / CAM design, with low investment cost, large air volume, low noise, low energy consumption, stable operation and long life. With high efficiency, the blinds can be opened and closed automatically to achieve dust-proof, waterproof, beautiful appearance; can be blown, is the best choice for cooling and ventilation of modern workshops, can also be exhausted. Environmentally friendly, energy-saving negative pressure fans will become the mainstream of ventilation and cooling equipment market.