FIREPROOF DOORS AND ITS MANUFACTURING METHOD

摘要

The present invention provides a fireproof door and a manufacturing method thereof, wherein a filling material is filled in the inside of the fireproof door, and an incombustible composition is applied to the outside of the fireproof door for the weight thereof to be light, and to maximally delay incombustible time. To achieve this, according to the present invention, the fireproof door comprises: a door frame; a hinge; a door; and a door lock.