Because it is a fake. The reason why the float I bought does not have an anti-counterfeiting trademark is that it is a fake. The scientific name of the anti-counterfeiting trademark is 315 anti-counterfeiting mark, which can be pasted, printed, or transferred on the surface of the subject matter, or on the packaging of the subject matter, or on the subject matter accessories (such as product tags, business cards, and anti-counterfeiting certificates). card), a mark with anti-counterfeiting effect.