No, you can't see anything on the front of any brick except the color of the brick itself, whether it is ultraviolet or not, at least I haven't heard of this technology.

There are many brands under the New Zhongyuan Group, and their floor tiles are only marked with the bottom bid of the brand, but there is no LOGO of New Zhongyuan, such as Bataan brand, and the bottom of the floor tile is marked with the logo of "B". But if you buy the brand "New Zhongyuan" of Guangdong New Zhongyuan, there should be a sign of New Zhongyuan on the back of the floor tile. You can find "NZY" or "New".

Zhong (surname)

Yuan. Of course, it is not excluded that the first-level (non-superior) bid will be sold after it is leveled.