They have been developed as atmosphere-controlled cold storage doors. It provides air impermeability through its special closed cell foam gaskets and stainless camshaft locking systems. There is a glass control section on these doors and this section can be directly assembled to the cold room wall. Our door blades are manufactured in monoblock form. The frame anodized aluminium profiles and the sheet and all the internal supporting sheets are combined in a way that would not create a thermal bridge and an integral strength is provided by injecting polyurethane inside this structure.