There are about 300 traditional brick factories in the suburb of Tehran but most of them closed. Use of the Traditional brick-baking furnace or manually or pressure brick factory is very old in Persia. Persian's most famous ancient brick arch of Anushirvan or Al-Mada'in currently in Iraq. Bricks by hand (pressure) is seven thousand years old, Tehran capital of 220 years, with older homes and historic traditional identity both modern and traditional building are made of traditional bricks. Now, after thousands of years, this custom is coming to an end. Only a few factories are still functioning. Modern factories and modern styles of bricks has substituted the hand bricks.