The steel fireproof door is carefully made of high-quality zinc free galvanized steel, filled with fireproof materials inside, and treated with the latest wood grain transfer printing or spray coating on the surface, which is flame resistant, anti-theft, beautiful and durable. Long flame retardant time, preventing the spread of fire, isolating fire sources, and striving for firefighting and rescue time. Good insulation and smoke isolation effect, reducing the entry and spread of smoke and toxins, and avoiding trapped personnel from dying rapidly due to inhaling toxic gases and smoke. Durable to impact, with structural strength that can withstand long-term collisions without reducing fire resistance, and able to withstand the impact of fire hydrants. The deformation rate is low when heated, and the warping rate is low after heating. When a fire occurs, the escape can be freely opened or the smoke shelter can be closed, waiting for rescue.
