How to Determine a Car's Manufacturing Date from the Glass?

[BrookeAnn]

There is a code located at the bottom left or right corner of the car window glass. In the last or second last row, you will find a number and several small black dots, which indicate the production date of the glass, and consequently, the car's manufacturing date. The number represents the production year of the glass, while the small black dots are used to determine the production month. Below is an introduction about car glass: 1. The markings on the front and rear windshields are different because they belong to different types of glass, and the manufacturer's part numbers also vary. 2. Generally, the glass marking consists of a combination of symbols, numbers, and English letters printed in the lower left corner of the glass. It includes information such as the car brand, glass brand, certification mark, glass type, and production date. 3. The safety performance of car windshields is extremely important. Typically, car glass is made of silica glass, with silicon dioxide content exceeding 70%, and the rest composed of sodium oxide, calcium oxide, magnesium, etc., manufactured through the float glass process.