Spark 1 fire door construction

55 mm thick sash with three-sided rebate, the construction of which is based on a full wooden frame, made of 0.6 mm thick galvanised laminated sheet, filled with a fire-resistant and sound-absorbing insert based on mineral wool, equipped with two gaskets.
Three security bolts on the hinge side of the door
Three z5 triple hinges, one of which is self-closing
Five-bar main lock
Three-bar top lock
Galvanized sheet steel frame, 1.5 mm thick, laminated in the same colour as the leaf, fitted with a gasket
Steel threshold with gasket
AXA Royal Flex Handle
Class B approved cylinder and knob in single key system