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circular and rectangular ventilation ducts with external fire

the OISTER 30 MAT consists of a rock mineral wool mat stitched onto wire mesh and faced with reinforced aluminium foil on the outer face and protected with a special fire-resistant aluminised fabric on the opposite face. The OISTER 30 MAT is specifically designed to guarantee maximum fire protection with the minimum possible weight and thickness.
VENTILATION DUCTS
The contents of this page are summarised from the official technical data sheet PDF, which remains the reference document.