Steel fire door only needs to be pushed open with the hand, and then it will be quietly closed automatically through the silent door closing device, which will not have a collision sound like the inside and outside the door, so as to create a quiet environment. When the steel fire door is opened, the opening force is less than 80N, even people in a wheelchair.

emergency exit door material,plakaya lêdana derî ya bi agir,emergency exit door manufacturers,fire exit door mechanism,

çêkerê derî li ber agir,emergency exit door material,deriyê ewlekariya pola ducar bi hardware, wêneyên deriyên ewlehiyê yên darîn ên ji bo daîreyan, deriyên ewlehiyê 820,emergency exit door manufacturers,wêneyê deriyê ewlehiyê, 9 deriyên lingê hundur,fire exit door mechanism,derî panelê bi etîket,

deriyên darîn ên agirgir,emergency exit door material,Bikaranîna deriyê derketina acîl, deriyê niştecîh ê agir ul, deriyê niştecîhê bi rêjeya agir