FF SYSTEMS F6 EI30 - Огнестойкая инспекционная камера

The access panel is made of aluminum frame with 18 mm, 20 mm, 25 mm thick gypsum board.‎ The two frames of the access panel consist of four profiles solidly welded together using a special process.‎ The access panel is supplied with two or more safety chains with carabiners, which must be reattached after each opening to prevent accidents.‎ A 1,75 mm joint provided with a profiled fire (expansion) gasket is left between the frame and the door.‎