Sheng strong steel fire doors _ Door Industry (certified) _ YUCI fire doors by Wanbailin district-Sheng distribution of stainless steel products. Wanbailin district-Sheng Stainless Steel Products Distribution Division (www.sxqsmy.net) is specialized in the "garage doors, Continental doors, fire doors, stainless steel doors, engineering doors, building doors, retractable door" of enterprises, companies adhering to the "integrity management, service intentions, "the idea, to provide you with the highest quality products and services. Welcome to inquire! Contact: Weijing Li. Installation Requirements fire shutter doors and use a mounted shutter doors hole upper not feature ventilation pipes, water pipes, etc; 2, the power line (three-phase five-wire and fire control signal lines) by the user laid to electric rolling door machine next control box side; 3, shutter doors installed, install ceiling mall fire doors, the ceiling should be away from the edge of the curtain plate 50MM wood fire doors, in order to avoid friction; 4, commissioning and use of high-grade fire doors, stand on the bottom is prohibited. Electrical installations are not allowed to dismantle move; 5, according to the fire regulations, fire shutter doors for fire control facilities shall not be used for other purposes, shutter just below not stack anything; 6, after installation, each quarter to start a fire door to check electrical, mechanical properties, pay attention to operational safety checks. 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.