Huazhong Building Materials Business Center is located on the crossroad of fenghuang east road and fengtai south road. This engineering consist of four districts of A,B,C,D, one floor underground, 4 floors overfloor, some parts on the 6th floor, height of 17.25m, with building area of 135773.43㎡. The first floor to 4th floor overground is business area, some parts on 5th and 6th is for office, belong to multi-storey civil building. The fire system of this engineering include: the fire power supply and distribution facility, automatic fire alarm system, emergency lighting and evacuation signals, automatic spraying fire-extinguishing system, indoor fire hydrant system and mechanical smoke system. Having passed the test on 2010-8-18.