NK4-280 Warm

The NK4-280 Warm is a 2-ply fold-up door with two heat insulation layers. Due to its rigid 280 mm wide frame construction, it is particularly suitable as a large exterior door, e.g. in dockyards and aircraft hangars. The width of a single door can be up to 28 m, and the height 25 m. When using an elevating support post system with multiple doors, the door width is unlimited. The heat insulation ch...