judging from the appearance: 1) is there no burr on the printed black edge? 2) Look at the trademark: 1.1 Is the font the same as the trademark of the original car glass? I mean the font, not the content of the trademark text, because some of the trademarks indicate that the batch is different every time. 1.2 words when clear, no burr? 3) If it is not installed, you can see whether the edging quality of the glass edge is smooth (this is machine edging). 4) Finally, I suggest you replace the glass, don't blindly believe the so-called original label (that is, the original trademark), but actually trust the brand of the manufacturer.