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We have requirement of your above mentioned product. Details are as follows :Pre-insulated ducting - PIR (Poly-isocynurate foam panel or board) ducts for internal use with accessories complete in all respect . The thickness of board shall be 20 mm, density of foam shall be 45 kg/m³, thermal conductivity 0.022 W/m.K. The aluminium foil shall be 80µ thick and provided on both sides and the foil shall be embossed. The fire and smoke classification shall comply to Class O of BS 476 part 6.7 - Class A ASTM E 84. € 30000 sqft.