[Class : 11] Electrically Powered Air Blowers For Ventilation Purpose, Electrically Powered Air Blowers For Air Conditioning Purpose, Electrically Powered Air Blowers For Dust Extraction From Air, Hot Air Blowers, Axial Fans, Dampers (Heating), Air Control Dampers, Dampers For Ventilating Installations, Smoke Release Dampers, Ventilating Fans For Industrial Use, Electric Fan...