A few small black dots on the Pacific Auto Network are the production month of glass. If you carefully observe the glass of other vehicles, some small black dots on the glass are in front of the numbers, and some small black dots on the glass are behind the numbers. If the black dot is in front of the number, subtract the number of black dots from 7; If the black dot is after the number, subtract the number of black dots from 13. The end result is the production month of glass. The number after the black dot is the production year of this kind of glass, which represents the last digit of the year.

Part of the glass will also be from the last production year, and a few thick black spots will be added behind it. These black dots are used to specify the week ordinal of a month, for example, five black dots represent the first week; Four black dots represent the second week; Three black dots represent the third week, and so on.

Generally speaking, the logo on domestic automobile glass can be divided into four categories: national safety certification logo, foreign certification logo, automobile manufacturer logo and glass manufacturer logo. ?

1, national safety certification mark, safety glass for automobiles is a national compulsory certification product, so every glass on an automobile should have a national safety certification mark, which is also commonly known as? Fiona Fang logo? This is the most common and important logo on automobile glass.

2. Overseas certification marks, such as the United States? DOT？ Logo, European ECE? e？ Logo and so on. It shows that the product has also been certified by these foreign certification bodies and can be exported abroad. Of course, some enterprises get foreign certification just to show the quality of their products. National standard? .

3. The logo of the automobile manufacturer. Generally speaking, glass manufacturers will print the logo of the automobile manufacturer, such as trademark and company name, on the glass at the request of the automobile manufacturer.

4. Logo of glass production enterprises. Glass production enterprises will print trademarks or company abbreviations on their own glass. For example, FY is the abbreviation of Fuyao Automobile Glass. In addition to the above, the logo on the car glass contains more information. (Photo/Text/Photo: Pacific Auto Network Chen Yalan)