免费看国产黄_日本做aj的视频_又爽又骚无遮挡的网站_精品一级毛片国产_国产一区二区久久精品_日本欧美色图亚洲_影音先锋人妻啪啪av资源网站_黄网站色视频大全在线观看_日本在线中文字幕D√D_成人理伦电影在线观看一区

What is the knowledge of fireproof glass door

2019-11-11 1620

Fireproof glass door belongs to a kind of fireproof door, but different from other fireproof doors, it has aesthetic and plasticity in appearance, which means that it can be used not only in fire passages or public places, but also in interior decoration. So what are the functions of fireproof glass doors? What is its characteristic?

Fireproof glass door is a kind of movable fireproof partition. In addition to the effect of general door, it has the special functions of fire prevention, heat insulation, smoke separation and active closing. It is usually used as a general partition door, which has the effect of fire prevention and heat insulation in case of fire, creates clear and favorable conditions for owners, users and rescuers, and greatly reduces the loss caused by fire.

Functional characteristics of glass fire door

The great function of fire-proof glass door is that it can prevent fire. Through special treatment, it has fire-resistant function, which can control the extension of fire and isolate the dispersion of smoke and toxic gases. However, this does not mean that it can curb the dispersion of fire. Its function is still limited and constrained at all times, but it can control the fire at all times.

Classification of fireproof glass doors:

防火玻璃門

Every classification will touch a standard, and the classification is different with different specifications.

According to the fire-resistant function, it is divided into: thermal insulation fire door and partial thermal insulation fire door. However, after the fire door is certified by CCC, only the thermal insulation fire door can obtain the certification;

It is divided into wood fire doors, steel fire doors, steel wood fire doors and other material fire doors according to materials;

According to the fire prevention time, it is divided into: half an hour, 1 hour and 1.5 hours;

According to the fire rating, it is divided into class C, class B and.

The presentation of fireproof glass doors can be said to provide a guarantee for fire protection. For people, when walking in the mall, if there are some fire accidents in the mall, we should see which is the glass fire door. With fireproof glass doors, we can be more.

Article source: fireproof glass door http://hanzhicheng.cn/news/