QCHS-1250 вентилятор серии конуса (звуковой сигнал конус вентилятора) indurstri

horn-cone fan: 1. Reasonable cone designing, low noise, big air flow, strong ventilation, low operating cost; 2. Imported bearing, high-strength, low noise, durable 3. Using air downstream principle, pvc shutter or aluminum shutter, antioxidant, light weight, no distortion, open and close sweetly, prevent backflow of air 4. High-strength more high-gluten strength aluminum-magnesium alloy wheel, light weight, high strength, toughness good 5. 6 pcs stainless steel blades, no distortion, no breaking, aesthetic durability 6. There are two types of fan house, slant wall type, upright wall type, could satisfy varieties need of differents customers 7. The high efficient and energy-saving motor passed the national CCC certification. Also protection class: IP55, insulation class: F grade