DELTA Armchair with soft and purified shapes. Javier Herrero Technical Sheet CAD Files Catalogue Fabrics Organic-inspired, the bowl shaped seat and backrest adopt the smooth and refined curves of a pebble with three rounded corners. It is this triangular shape which gives the name of Delta. Important: indicate the colour of the decorative stitching thread. MATERIALS 1. Internal frame in injection moulded polyurethane, with 16/2 iron bars with seat and backrest suspension made from steel springs. Fire Retardant polyurethane (UNE EN 1021-2:06 / BS 5852:06) covering the frame with 65 kg/m3 density. 2. Base. Possibility of choosing between a fixed base in ash or a metal rotating base finished in a coloured epoxy laquer.