... *Be used for ventilation and air the laboratory T35 axial fan types: according to impeller diametar,could divided to NO.2 ... .office block,movie theater .so on Explosion proof Axial Flow Fan Type BT35-11Application1,Designed forExplosive atmosphere Zone 1, Zone 22 ... up of explosion proof motor , fan blades ,wind cylinder etc.2,Fan blades with large chord ,space warps, tilted structure wiled blade, it ...