315 consumer recommendation Xin Tyrone, [super fire shutter doors] manufacturers the best choice. Super fire shutter doors super fire shutter door manufacturers Jinan super fire shutter doors Jinan super fire shutter doors Which fire shutter doors compared with the normal shutter doors, is on fire demanding to meet the national standard GB 14102-2005 normative standards TF3 fire rating requirements, The products are widely used in various industrial and civil and public buildings required to measure surface temperature rise fire back against low demand places pressure, such as fire offices, supermarkets, commercial buildings, exhibition halls, underground garages, entertainment and other buildings separate partition. According to standard provision in order to fire back surface temperature rise of determination conditions, fire resistance of not less than 3H as super fire shutter fire shutter.