Fire doors is a suitable building large hole at the fire, heat insulation products in the design and installation of technology has played a certain role. Shanghai Heng Door Industry fire shutter doors are widely used in industrial and civil buildings fire partition area, can effectively prevent the spread of fire to protect the life and property safety glass fire door, is indispensable to modern building fire safety. Fire shutter doors area calculations should be performed in accordance with national building standards engineering fields. Calculated as :( fire shutter door opening height + 600mm) × (Rolling door opening width + 200mm) Note :( hole underneath the beam height to gross floor fire doors, rails need embedded) Boxes and lintel area calculations for the hole width :( ) × (underside + facade) Computation of the area. After measuring the height and distance from the roof to do to maintain the spacing of 30cm. Sheng door industry outlined the role of strong fire doors: fire door means that within a certain period of time to meet the fire resistance stability, integrity and insulation fire door requirements door. It is located between the fire district, evacuation stairwell, vertical shafts and other fire separation having a certain fire resistance. In addition to the role of fire doors ordinary doors to prevent the spread of fire and more smoke diffusion effect, can prevent the spread of fire within a certain period of time, to ensure evacuation. Stainless steel fire doors, fire doors Xinzhou, strong Sheng door industry by Wanbailin district-Sheng distribution of stainless steel products. Wanbailin district-Sheng Stainless Steel Products Distribution Division (www.sxqsmy.net) strong, credible, in Taiyuan, Shanxi metal door industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the strong Sheng door industry and you work into the brilliant, for a better future!