Aluminum door and window systems can be assembled in 2 forms:
1. Aldox (ordinary, cold aluminum)
2. Isosystem (insulating aluminum)
Aluminum door and window systems from the aldox are used, mainly in schools, hospitals, shops. And isosystem aluminum door and window systems are used, mainly, in special entrances to buildings, winter gardens and large markets. An exceptional feature of isostemic door and window systems is that they are more durable, do not let heat and cold, are lasting and have a higher quality.