Types of fire shutter doors of the main composite steel fire shutter (fire and smoke), inorganic super fire shutter (dual dual screens), steel composite type water spray mist fire shutter, steel composite lateral type fire shutter, steel composite horizontal fire shutter, inorganic premium folding fire shutter and fire shutter curtain with a variety of doors. Material: steel, composite, inorganic and so on. By Mounting: wall, side walls (or cave, on the outside) two. By opening direction: two volumes on the volume and the side. Fire doors insulated by the classification: fire door (A Class): within the specified time-grade fire doors, fire doors can meet fire integrity and insulation requirements. Part of the fire door (Class B): not less than the prescribed within 0.50 h, fire doors to meet fire integrity and insulation requirements. Non-insulated fire doors (Class C): within the specified time, to meet the requirements of the fire integrity of fire doors. Fire door manufacturers, Luliang fire doors, door-Sheng 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 a strong Sheng door industry and you work into the brilliant, for a better future!