At present, there are many imitations of 3m double-sided adhesive on the market, and the quality is much worse than 3m. At present, the high imitation 3m adhesive tape is generally about 600 lower than the genuine one. So don't say that the cheaper the better, that you have sold fakes. There is also a high imitation double-sided tape. From the outer packaging, the box of 3m is very strong, and the font is clearly printed. Open the package and see if there is a 3m number on the paper tube inside. If there is no problem product, you should buy it carefully. And the log on 3m release paper. It can be seen that 3 M is relatively clear and highly imitated. Because of the low cost and the technology can't keep up, it looks very vague. . On the other hand, experienced experts can tell from the smell. . . . The above methods are available to anyone who has seen the original products of 3m. Judging by personal ability. Just provide some superficial things. Please advise your peers on the shortcomings. . . . In addition, more accurate answers can be obtained through the test.