Prime door frames made out of Hardwood suitable for mounting shutters with heat activated Intumescent fire seal strips (Imported) of size – 10 x 4 mm provided on grooves on all the three sides of the frame. Shutter y of Prime 65 mm thick non-metallic asbestos free fire Acoustic doors of 120 minutes rating conforming to BS: 476 part 22IS-3614 Part 2 as per prototype tested and certified at CBRI Roorkee suitable for mounting on door frames
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Budh Vihar, Delhi