1Adopt Haier tri-proof motor 2Energy saving,big wind capacity 3high strength,over 10years service time 4CCC,CE,ISOcertificate 1, JHF-400A greenhouse circulation fan for the three anti-tailored special motor, the motor using the most advanced energy-saving technology, national standards, with the 3C certification, 360 hours after destructive testing, high-tech international advanced energy-saving ...