Poultry Exhaust Fan,air Volume 17700 per hour ,Power Rating is ... than 65,50HZ,weight 45K,Blade Dia is 710 mm Poultry Exhaust Fan-Huge air volume, Low noise, Good energy saving ... place, guesthouse.3.Public: hospital, station, gym, school4.Animal husbandry: poultry house, pig, chicken, rabbit, cow barn Itemexhaust fanJF-71JF-90JF ... /220/270 100/200/28256/110/140 45/90/120 Poultry Exhaust Fan