The video recorded by manufacturers to promote their products doesn't mean anything. If you want to buy it, you have to learn from other channels. As for whether Wang Xuan is an employee of 3 15, you will understand when you think about this question. Definitely not. 3 15 Anti-counterfeiting is a national institution, so it is impossible to make publicity for a certain enterprise alone. . . . Even if that enterprise is a state-owned enterprise, it is absolutely impossible.