国产乱码一区二区三区下载 _一级特黄国产高清毛片97看片_日本三级香港三级人妇电影精品_人体大胆一区二区无码视频_国产的精品视频免费观看_亚洲高清无码不卡视频_色婷婷综合缴情免费观看看_色欲AV伊人久久大香线焦影院_激情亚洲精品伊人久久综合 _国产A级免费无码播放

Identification method of true and false fireproof glass

1. Fake as true

Some unscrupulous manufacturers do not have the factory guarantee ability to monitor fire-proof glass products or do not have the production ability, so they try to buy several pieces of cesium potassium fire-proof glass from others as samples and send them to the quality inspection of fire-proof building materials for type inspection. They deceive the inspection statement and obtain the qualification of market access.

In fact, in practical production, raw materials, processes, equipment and testing methods reduce the standard requirements or even do not meet the requirements, cut corners on work and materials, pretend to be genuine, and then sell fake and shoddy products on a large scale.

2. Counterfeiting with certificate

Although some fire-proof glass manufacturers have certain production ability and hold two or three inspection certificates, they make a partial generalization and falsely claim that all standard fire-proof glass products are qualified, so as to grandly promote other kinds of fake and inferior products in shopping malls & quot; Fraud with certificate & quot;.

In fact, an inspection statement only proves that the one-time type inspection of a standard fireproof glass with a thickness is qualified, which can not replace the standard fireproof glass products, and & quot; Only responsible for incoming samples;. This method of counterfeiting is relatively obscure and deceives some users who do not understand standards and norms.

3. Infringement and counterfeiting

Some illegal manufacturers of fireproof glass invade other people's skills or registered trademark rights, pretend to be other people's trademark name, packaging, decoration, fake or falsely use certification marks, fake origin and issue hypocrisy and other unfair competition behaviors, and mix up shopping malls.

4. Film counterfeiting

The methods of pretending to be fireproof glass emerge one after another, and another trick is film fraud. In the society, some unscrupulous manufacturers ignore the objective fact that the manufacturing process of single piece of fireproof glass is messy and the raw materials are expensive. They blindly cut corners on work and materials and pursue interests. They even put a film on ordinary glass and lied that it was fireproof glass, which deceived them into checking the statement.

Article source: fireproof glass http://www.www.hzjunyuekj.cn/