HUNG FENG Hongfeng Factory has been engaged in wind turbine production for more than 30 years, with a group of professional R&D teams, high-quality technicians and management talents, and advanced production, processing and testing equipment. Professional development: Tunpu medium pressure blower, straight blade blower, multi-wing blower, cooling fan and industrial vacuum cleaner. After years of technical research and development and innovation! About the price and quality of our products: Because we are a factory direct selling network, our price is superior and our service is guaranteed! Product features: 1. Large air volume, low noise and light weight. 2. The aluminum alloy material is adopted, which greatly reduces the weight and achieves the purpose of light weight. 3. The motor is an i.e.c fully-closed external fan-type aluminum frame motor, with special axis design, which is suitable for full-time use. 4. Special blade design, large air volume, low noise and long service life. 5. Special air volume damper, with high air volume control stability and easy operation.