Cooling Fan Features: ◇ frame using advanced automatic processing, thick galvanized layer, anti-corrosive ◇ precision microcomputer aided manufacturing system allows the fan to maximize performance; eight rigorous quality testing procedures: Noise testing, vibration testing, static balance, balancing, rotating concentric performance test, fan speed detection, detection of overall efficiency cooling fan [rope duct (trumpet) Fan Features] 1. bell sound design, low noise, Changchun cool winds of fans, ventilation and strong, low operating costs; 2. Bearing cooling fan installation, high strength, low noise, durable; 3. Using the principles of synthetic type air downstream PVC blinds or aluminum blinds, anti-oxidation, light weight, no distortion, open and flexible Weifang chicken cool fan, air backflow prevention; 4. six stainless steel blades, no distortion, no fracture, beautiful and durable. Yancheng wind cooling fan _ Minhua Qingzhou temperature control equipment (certified) _ cooling fan is provided by the public, China Qingzhou temperature control equipment plant. Temperature Control Equipment Factory Qingzhou public Hua (www.minhuawenkong.com) (www.minhuawenkong.com) (www.minhuawenkong.com123) is an industry leader in Shandong Weifang, fans, ventilation equipment, over the years, the company is implementing the scientific management, innovation development, the principle of honesty and trustworthiness, and satisfy customer needs. Qingzhou temperature control equipment in China and China leading the staff warmly welcome all inquiries negotiations, China and China Qingzhou temperature control equipment to create a better future.