1,industrial cooling fan 2,CCC motor 3,CE and ISO9001 Certificate 4,large airflow ... diameter(mm)Speed(r/min)TSBD-11380*1380*400445001.13801270427TSBD-2 1220*1220*400375000.753801100427TSBD-31100*1100*400325000.753801000427TSBD-4900*900 ... , supermarket, hotel, net bar, recreational place, guest house.Public: hospital, station, gym and school.Animal husbandry: poultry house, pig, chicken, rabbit ,cow ...