... propeller 4. with RoHS Plastic fan blades 401x115x8 for HVACR system Product photos: SpecificationsApplication: HVACR Equipment, Machinery, Air ... noise, compact structure2. ROHS environmental protection authentication3. After special treatment, to prevent mildew, permanent use4. High temperature ... , our products are extensively used in HVACR system,Heatpump,Cleaner,Air Curtain,FFU,Air Refreshing,Air ...