How to Check the Production Date of BMW Car Glass?
1 Answers
The small black dots indicate the production month of the glass. Some glass panels have the black dots behind the numbers, while others have them in front. If the black dots are in front of the numbers, subtract the number of dots from 7. If the black dots are behind the numbers, subtract the number of dots from 13. The result will be the production month of the glass. Below is a related introduction about car glass markings: 1. National Safety Certification Mark: Automotive safety glass is a mandatory certification product in China, so every piece of glass on a car should have the national safety certification mark, commonly known as the "Square-Circle Mark." This is the most common and important marking on car glass. 2. Overseas Certification Marks: Examples include the U.S. "DOT" mark and the European ECE "E" mark, indicating that the product has also been certified by these foreign certification bodies and can be exported. Some companies obtain foreign certifications merely to demonstrate that their product quality meets "international standards." 3. Automaker Markings: Generally, glass manufacturers will print the automaker's markings—such as logos or company names—on the glass as requested by the automaker. 4. Glass Manufacturer Markings: Glass manufacturers will print their own trademarks or company abbreviations on the glass they produce. For example, "FY" is the abbreviation for Fuyao Automotive Glass.
