Thermally insulated door series in steel and stainless steel.
- Types of opening: One and two-leaf, opening inward and outward
- Frame material group RMG 1
- Fully clamping window bars without screw fittings
- Identical face widths in all door systems
- Filling thicknesses in the wing of up to 54 mm
- Also available as a WK2-class intruder-retardant door