About us Holders Sheet Metal present A selection of bespoke ventilation solutions such as ductwork, stainless-steel kitchen canopies and much more. All items we provide are produced to match specific specifications and might be created from moderate, galvanised, stainless steel or aluminium. All of our made ducting can be powder coated in a complet

The amount of ventilation essential is determined by a number of components, including the fresh air essential for the amount of people predicted to become during the Room, what They are going to be undertaking, how they are predicted to dress, the categories of local warmth sources for instance lights, tiny appliances and computer systems, any res