Summary: Tamaki, as a high-end material for improvement, has been recovered by high-end designers and customers, and the lack of resources has made it possible for the industry to develop it, while in the two dunums of Gansu, there is a powerful and little-known stone enterprise, Gansuingu stone, Inc., which today has the honour of interviewing its oppressor, Berlin, let us uncover this mystery. As a high-end material for the improvement, rocks have been recovered by high-end designers and cu...