Products and Services Rectangular Ducting We supply RECTANGULAR DUCTWORK and associated ductwork fabrications, in galvanized steel, mild steel and stainless steel. Spiral Ducting We supply SPIRAL DUCTWORK from 100 mm to 1600 mm diameter in galvanized steel. Kitchen Canopies Naudens Vent Canopies provide efficient ventilation of ovens, steamers, all types of ranges, fryers and griddles. Shelving Shelving manufactured from Stainless steel and galvanised. Fire Suppression – Ansul Maximum protection in the event of a cooking equipment fire with unlimited supply of fire fighting agent (water fog). Mobile Ductshop Naudens is proud to offer a fully mobile Duct shop to meet all onsite requirements. Air Distribution Naudens offers a multitude of air distribution solutions including; flex, disk valves, diffusers, grilles, etc.