The automobile windshield parts market is quite chaotic, and there is no distinction between true and false for the time being. Only the difference between brands. Moreover, the methods to identify the front windshield are mostly destructive experiments, such as anti-penetration, head model experiment, stress test and so on. Under normal circumstances, only the building materials inspection and appraisal center has the appraisal qualification. However, high-end cars like Audi, as long as they are replaced in 4S shops, are all original accessories, and there is no quality problem (the logo of the best quality "FY" brand car glass in China). The problem is that there will be fakes on the market. There are several ways to help you identify: 1, look at the printing, the black edge of genuine printing is very smooth and shiny; Defective products are gray and rough to the touch; 2, look at the trademark, the genuine trademark font is clear and neat; The defective products are vague; 3. Check the 3C authentication number and E43 European * * * body authentication number 3C online. There will be E000 * * on the trademark. Write down this string of characters and search online to see if what the manufacturer found is consistent with what the merchant said when you bought it. So is E43. There is a string of characters under the trademark office E43. I searched online, and it is consistent with what the merchant said. If the two characters match, it can basically be confirmed as genuine. If you still don't understand, you can post it: professional automobile glass manufacturers.