美国黄色片一区二区三区,欧美韩日亚洲影视在线视频,国产人妻大战黑人20p,免费无码又爽又刺激高潮的视频免费 ,国产在线丝袜精品一区免费,国禁国产you女视频网站,少女たちよ在线观看动漫4,免费啪啪视频一区

        What are the functions of fireproof glass doors in case of fire

        2020-06-29 2253

        At present, fire windows are used in all projects, which has brought a great degree of maintenance to our life. The glass used in the fire windows produced by the manufacturer is fire-proof glass, which plays a major role in controlling the extension of fire or smoke separation. It is a measure type fire-proof material, and its fire-proof function is evaluated by fire-proof function. This material is a special glass that can maintain its integrity and heat insulation in the regular fire resistance test through process processing and treatment. The original piece of glass in Chengdu glass doors and windows can be made of float plane glass, tempered glass, composite fireproof glass, or single piece of fireproof glass. The classification of fireproof products is different, and fireproof glass is no exception.

        According to fire resistance function

        Insulated fireproof glass (Class A), non insulated fireproof glass (Class C) and partially insulated fireproof glass (class B).

        Class A

        At the same time, fireproof glass meeting the requirements of fire integrity, fire resistance and heat insulation. It includes composite fire-proof glass and cast-in-place fire-proof glass. This kind of glass has the functions of light transmission, fire prevention (smoke, fire and heat radiation), sound insulation and impact. It is suitable for the construction and decoration of steel wood fire doors, windows, upper lighting, partition walls, daylighting roofs, smoke retaining vertical walls, perspective floors and other building components that need to be both transparent and fire-proof.

        防火玻璃門

        Class B

        At the same time, fire-proof glass meeting the requirements of fire integrity and thermal radiation intensity. This kind of fireproof glass is mostly composite fireproof glass, which has the characteristics of light transmission, fire prevention and smoke separation.

        Class C

        Only single piece fireproof glass satisfying the requirements of fire resistance integrity. This kind of glass has the characteristics of light transmission, fire prevention, smoke separation and high strength. It is applicable to fireproof glass partition walls, fireproof windows, outdoor curtain walls, etc. without thermal insulation requirements.

        According to fire resistance

        According to fire resistance5個等級:0.5h、1.00h、1.50h、2.00h、3.00h。

        In order to meet the fire protection requirements required by the state, the scale, appearance quality, optical strength and impact capacity of fire-proof windows should comply with the national rules. All kinds of fire-proof glass products should pass the testing of various inspection centers, reach the qualified specifications, and then issue the product qualification certificate. In the future, they can enter the stage of sales and installation.

        Article source: fireproof glass door http://www.wan-xin.net/


        主站蜘蛛池模板: 日本一区二区三区在线观看免费| 亚洲乱亚洲乱妇中文影视| 久久www香蕉免费人成| 免费 无码 国产在线观看不卡| 性感人妻中文字幕在线| 国产av综合一区二区三区最新| 亚洲色图综合免费视频| 亚洲精品日本| 色综合色综合色综合久久| japanrcep老熟妇乱子伦视频| 夜夜春亚洲嫩草影院| 夜爽8888视频在线观看| 啊灬啊灬啊快日出水了| 欧洲精品99毛片免费高清观看| a毛片免费在线观看| 精品深夜AV无码一区二区| 国产精品无码mv在线观看| 在线成人看片免费播放视频| 国产日韩午夜视频在线观看| 石屏县| 亚洲免费不卡av网站| 国产精品 精品国内自产拍| 波多野无码AV中文专区| 色护士极品影院| 日本欧美一区二区免费视频| 国产在线中文字幕精品| 99久久精品久久久| 免费一级国产大片| 蕲春县| 五河县| 91精品国产91久久综合桃花| 亚洲AV无码一二区三区在线播放| www插插插无码视频网站| 蜜臀av一区二区三区人妻在线| 亚洲VR永久无码一区| 久久亚洲国产精品婷婷| 亚洲一区二区三区精品在线| 女女同性黄网在线观看 | 国产久视频| 奇米精品视频一区二区三区| 久久久天堂国产精品女人|