Doors  Manufacturers, Traders, Suppliers

Doors are systems for closing or opening inlets in walls. They thus enable access to enclosed rooms such as buildings. Doors can be locked with a key. Each lock and key has a different shape and only people with the right key can unlock the door. Other very important functions of a door are its protective functions such as protection against radiation, smoke (smoke protection doors) or sound (sound protection doors). Doors also provide insulation against external influences such as low or high temperatures. These effects, especially with fire doors, are achieved by special workings in the doors. In general, a door consists of a movable element the door leaf, the door frame and the frame. The door leaf is attached to the frame. Furthermore, sliding doors, which are guided through guides on the top and bottom, are being used more and more frequently, as they can be installed in inlets in a very space-saving manner.