It is normal that the front and rear windshield numbers are different, because they belong to different types of glass, and the manufacturer's part numbers are different. Glass labels are generally composed of numbers, numbers and English letters, and are printed in the lower left corner of the glass. Including automobile brand, glass brand, certification mark, glass type, production date and other information.

For example, the following parameters in the glass label have the following meanings:

1 stands for the brand of the car; 2 indicates that China has compulsory 3C certification; 3 stands for glass brand; 4 stands for glass manufacturer code, and E000 137 stands for Fuyao Group Changchun Co., Ltd.; 5 indicates the mark certification of the European Union; 6 indicates that DOT certification of the US Department of Transportation has passed; 7 indicates the type of glass, the interlayer means laminated glass, and if it is tempered, it means tempered glass; 8 stands for the date of production of glass, and 8 stands for the year, which means that it was produced in 2008, and .. stands for the month. The dot before the number indicates the first half of the year, and then the second half. Several points represent forward or backward months. Use "7 minus points" in front and "13 minus points" in the back. The correct meaning of .. 8 in the picture was produced in May 2008.