1. Fire doors according to fire resistance limit: It is divided into Class A, Class B and Class C, and its fire resistance rating shall

1. Since it is impossible for people to close the door at will when a fire occurs, the fire door must be closed automatically, and

Fire doors shall be set up in accordance with the following requirements: 1. Normally open fire doors should be used for fire doors that are

Many people think that as long as fire doors are installed, there is no need to worry about catching fire. Actually not. It has been

Fire prevention equipment is often used in daily life. Fire doors are often used in our home life, so what are the standard requirements for

The difference between stainless steel fire doors and steel fire doors, what is the difference between stainless steel fire doors and steel fire doors? The

Modern people’s awareness of fire prevention is extremely high, so in daily decoration and life, they pay great attention to the preparation and use of

Fire doors have a very wide range of applications in many places, and of course they also bring a good guarantee for our safety and

As people’s home improvement requirements for doors increase, fire doors will be popular among consumers for a period of time under the trend of meeting