What do you think of glass brands? Look at the logo on the glass sign:1. The trademark of automobile glass consists of several points and a number, where the number represents the year, such as 0 means 2010; 2. The point on the left of the number represents the first half of the year, and the point on the right represents the second half. If there are several points on the left, subtract a few from 7. If it is a point, it is 7-1= June; The number on the right is 13 minus a few points. Even if there are six points, it is13-6 = July. Up to 6 points per side.