Fireproof doors – single and leaf are certified under the new European Standard EN 1634-1 and have opinions of eligibility issued by the Ministry DG FSPP “Under Article 54 of the Regulation on the essential requirements for construction and evaluation of building products.” DUK-1 offers fire doors of licensed producers and importers.
Distinguishing features offered DUK-1 are:
- Easy installation
- Functionality – the choice of sliding doors or ONE or two-winged doors on hinges,
- Select opening “left / right” for single doors during assembly,
- A wide selection of standard sizes or custom sizes,
- Smoke tight  closing doors with adjustable hinges and a hydraulic machine,
- Choice of colors.
Fire doors are made of sheet steel, filled with fire-resistant insulation wool. The construction of  the door is reinforced with metal profiles. Along the contour of the closing profile is set smoke tight tire fire provides sealing of the closure and cessation of smoke.