How to Check the Production Date of Automotive Glass?

[LilaLynn]

Methods for checking the production date of automotive glass: 1. The production date of car glass is mostly printed in the lower right or left corner of the glass, consisting of small black dots and numbers. However, there are two types of these small black dots and numbers. 2. The first type is numbers plus small black dots, where the number represents the last digit of the production year. 3. If the small black dots are in front of the number, subtract the number of small black dots from 7 to get the production month. If the small black dots are behind the number, subtract the number of small black dots from 13 to get the production month. 4. For example, if the number on the glass is 7 with one black dot in front, then 7 minus 1 equals 6, meaning the glass was produced in June 2017.