What Information Can Be Found on Car Glass?

[MacEvelyn]

Domestic car glass markings can be divided into four categories: national safety certification marks, foreign certification marks, car manufacturer marks, and glass manufacturer marks. The following information can be identified: 1. Safety Certification: Automotive safety glass is a mandatory national certification product, so every piece of glass on a car should have the national safety certification mark, commonly known as the "Square and Circle Mark," which is the most common and important mark on car glass. Other marks include foreign certification marks, such as 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 abroad. 2. Production Date: The VIN (Vehicle Identification Number) located below the windshield reveals the car's production date. The tenth digit of the VIN indicates the production year of the car. The numbers represent the year of glass production, while the small dots in the first row represent the month of that year, with a minimum of 1 dot and a maximum of 12 dots. The second row represents the corresponding days of the month, with large dots indicating 10 days and small dots indicating 1 day.