48 mm thick Metal Fire Door of 60/120 minutes Fire rating confirming to BS: 476 Part-22and IS: 3614 Part-II Fabricated with 2 nos 18SWG galvenised steel sheet sandwiching with proprietary fire resistant insulation materials in-between. The door frames are manufactured from 16SWG galvenised steel sheet pressed form to double rebate profile of size 143mm x 60mm. The door frame and door shutter are fitted with SS BALL BEARING HINGES’ and are coated with one coat of fire and corrosion resistant primer.