色8久久人人97超碰香蕉987,欧美精品一区二区精品久久,中文字幕永久在线观看,中文人妻av久久人妻18,啊别插了视频高清在线观看

<ul id="q2oy0"></ul>

<fieldset id="q2oy0"></fieldset>

Hello! Welcome to the official website of Heshan Boan Fire Resistant Glass Technology Co., Ltd.

中文

English

News

Position:

Home

News

Methods for identifying true and false fireproof glass

2020-12-30 3924

Identification method of true and false fireproof glass1. Fake as trueSome unscrupulous manufacturers do not have the factory guarantee ability to monitor fire-proof glass products or do not have the
Comparison between fireproof glass window and fireproof window

2020-12-17 3773

From the perspective of fire-resistant window, what are the advantages compared with general fire-resistant window?In order to complete the fire-resistant integrity of general windows and carry out sk
Thermal insulation principle of composite fireproof glass

2020-12-09 3813

Features and functions: the composite glass of our company belongs to grouting composite glass, that is, it is composed of two layers of glass and interlayer fire-proof glue. It is class A with fire-r
Fire resistance of class B fireproof glass window

2020-12-02 3745

The fire resistance limit of fireproof windows is: not less than 1.2 hours, not less than 0.9 hours for class B windows and not less than 0.6 hours for class C windows.Skill requirements:I. data and a
Method for making composite fireproof glass

2020-11-30 3669

Composite fireproof glass (dry process)It is composed of two or more layers of glass original sheet and one or more layers of water-soluble inorganic fireproof glue interlayer.Fire prevention principl
Operating principle of fireproof glass door

2020-11-26 3189

Operation principle of fireproof glass doorFireproof glass door is also known as glass fireproof door. In addition to the internal frame structure of the product, large-area fireproof glass is selecte
Introduction to specification of fireproof glass door

2020-11-13 2772

Now fire-proof glass doors are very common, and most people only know that they can play a role in the event of fire. There is basically no other different cognition. Therefore, what this paper does i
Functions and characteristics of fireproof glass doors

2020-11-02 2591

According to the new national decree, fire doors have been listed as one of the products of fire protection system. Fireproof glass door is a kind of fireproof door. However, the fireproof glass door
Explain the key points of identification on fireproof glass

2020-10-24 3522

It is a 3C product with national compulsory certification, and it is also a special glass with key monitoring in the field of architectural glass. The national department has also successively promulg
Why choose single piece cesium potassium fireproof glass

2020-10-15 3103

Compared with traditional grouting fire-proof glass, single piece cesium potassium fire-proof glass has high weather resistance in addition to high strength and easy installation! In addition to bubbl