Wooden fire door fire door engineering door hotel security door single open double open class A and class B various styles customized manufacturer direct hair

الوصف

Wooden fire door refers to the door frame, door frame and door panel made of wood or wood products. The fire resistance limit reaches the provisions of GB*******5 Code for Fire Protection Design of high-rise Civil buildings. Fire doors are classified as A, B and C three levels in the fire protection code for high-rise civil building design, and the fire resistance limit is stipulated. The fire resistance limit for Class A doors shall not be less than 1.5 hours, Class B doors shall not be less than 1 hour, and Class C doors shall not be less than 0.5 hours. Wooden fire door is divided into full board and half glass two series and single, double fan various specifications.