How to tell the true and false of Jiumuwang's shower?

The questioner asks such a question, which is suspected of advertising. . .

There are almost no well-known small brands, who will make fakes.

Even if the fake comes out, there is no popularity, no market and no profit. Who will sell it to you?

What does it matter if someone sells it fake? Can you fold a faucet with paper and sell it with a shower?