are sold under the trademark of KONDOOR and they are a combination of solid metal construction and a variety of decorative finishes with laminate coating, technical or natural veneers in different colors of polyurethane paints. The construction consists of a wing and a door frame, and for the foundation of the metal part of the wing is used a steel sheet with a 1.5 mm gauge thickness and a welded frame, made of cold welded profiles. It is ribbed with metal splints from the inside, which guarantees high bending resistance.

In order to increase the strength, the wing is closed with an additional sheet iron as hollow spaces are filled with a 6 centimeter soundproofing and heat insulation material.

The locking system consists of a lock with a trilateral action, which is firmly attached to the foundation through a mechanism, providing quick and easy access to eventual servicing.

The string between decorative panels and the metal construction of the wing is executed by an aluminum system. The door frame is an opened frame, made of cold welded profiles, in which the holes of the locking system are cut out. The holes are secured with protective armor, as well as holes for passive prongs.

The door is bilaterally sealed through rubber gaskets, which are installed in the wing of the door frame. They are precisely pressed to their adjacent surfaces by using a regulator, so the door can be opened and closed without any effort. Thus, the operational life of the door is longer.