You can look at the entire front and there will be a secret code on the far right, which can be seen through light radiation, or using ultraviolet light. The last three digits in the second row represent the prefix, 329 is 329, chen87064329 The method mentioned is useless in the face of high-proof cigarettes. Today's high-proof cigarettes are basically invisible when you look at the packaging. They have all the anti-counterfeiting features. Even the people from the tobacco company have to look at them for a long time to confirm the authenticity. The smoke is basically the same. , either the veteran can’t figure out the problem, or the veteran feels that something is wrong at best and dare not say it is fake. You study more. Go to the Yanke Forum on Baidu, it’s more professional!