Special version on request e.g.: Forend 20 mm; Forend stainless steel, latch and bolt nickel-plated with holes for attaching rosette fittings for two locking circuits; hazardous side same as hinge side (information of the impact direction required). Function from the inside: The door has a lever handle on the inside. Pressing the lever handle retracts the latch and the pre-locked bolt. The door can be opened. Function from the outside: The door has a lever handle on the outside. The latch can be retracted using the lever handle. The door is not yet secured by pulling it to from the outside. To secure the door, it is necessary to lock it with the key. To open the door, the key must be used to unlock the door and the latch retracted by actuating the lever handle.