Fire doors have gradually been recognized by everyone for their excellent fire protection performance. However, there are thousands of choices for letting go doors on the market, which are like looking for a needle in a haystack. It is obviously inappropriate, so it is important to have an idea. Let’s take a look at how to choose a fire door.
In fact, the most important method for selecting fire doors is to select fire doors according to standards (-) The concepts and requirements for fire doors are introduced from international and foreign standards. Some concepts and requirements for insulated fire doors and non-insulated fire doors are The classification has been changed from the original classification of insulated fire doors to fully insulated fire doors (categories), partially insulated fire doors (categories) and non-insulated fire doors (categories). The interior of the fire door must be filled with thermal insulation materials that are non-toxic and harmless to the human body.
Fire door manufacturer..
Fire door manufacturer, steel fire door