Sadat,s (hoseini) brickyard was established in 1986.this factory produced extender brick until 1991.it was performed to traditional process through manual bar by workers.the production of factory was performed semio automatically (sun dry) in 1992 and it became out of sun day position by construction of dryer in 2001,therefore the products of factory was turn in to grade a products. At the present time,this factory has certificates of iso 9001 and iso 14001