What is the sign on the back of Hansgrohe tile?

There is no invisible sign, but there is a manufacturer's logo on the back of the tile.

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Foshan Hans Geya Ceramics Co., Ltd. relies on the company's strong production scale and financial strength, and always follows the brand culture concept of "good quality and ingenuity", based on the needs of the market and consumer users, insisting on inheriting classics with ingenuity and forging extraordinary with innovative spirit. This should be a garbage polished brick produced by Neihuang in Anyang, Henan Province. When sticking ceramic tiles, stick them in the direction indicated by the arrow on the back to prevent sticking them wrong. 2.grace is taken from the English word "grace", which means "elegance and nobility". Grace ceramics takes "classic and elegant grace" as its brand concept, and with its unique aesthetics and excavation,