ONNAO

Branching pipes, not of metal; Ducts, not of metal, for ventilating and air-conditioning installations; Non-metal air conditioning ducts; Non-metal ducts; Non-metal roof vents for heating, cooling and ventilation in residential and commercial buildings; Non-metal vent cover for HVAC ducts; Non-metal ventilating ducts; Outdoor blinds, not of metal or of textile; Rigid pipes of polypropylene for the supply of drinking water and heating and air conditioning systems in houses, office buildings and industrial buildings; Sewer pipes, not of metal; Shutters, not of metal